Injuries
INJURIES
Displayed below is a detailed list of all known injuries on the ATP and WTA tours.
This list is in descending order by the date of injury.
Where a return date is given this is either the date of the player’s first match back or the player’s estimated return date.
| Injury Date | Player | Injury Description | Status |
|---|---|---|---|
| 2021-10-11 | Alex Molcan (SVK) | Left Leg - WD from Napoli Ch Singles | |
| 2021-10-11 | Sadio Doumbia (FRA) | Right Wrist - WD from Napoli Ch Singles Q | |
| 2021-10-11 | Kyrian Jacquet (FRA) | Back - Ret. from Alicante Ch Singles | |
| 2021-10-11 | Alexander Zhurbin (RUS) | Left Knee - WD from Alicante Ch Singles Q | |
| 2021-10-11 | Camilo Ugo Carabelli (ARG) | Back Injury - WD from Santiago Ch Singles | |
| 2021-10-05 | Steven Diez (CAN) | Back - Ret. from Indian Wells TMS Singles Q | |
| 2021-10-05 | Vasek Pospisil (CAN) | Back - Ret. from Indian Wells TMS Singles | |
| 2021-10-05 | John Isner (USA) | Personal - W/O from Indian Wells TMS Singles | |
| 2021-10-04 | Magda Linette (POL) | Ankle injury - Ret. from Indian Wells WTA Singles | |
| 2021-10-04 | Astra Sharma (AUS) | Shoulder injury - Ret. from Indian Wells WTA Singles | |
| 2021-10-04 | Lauren Davis (USA) | Dizziness - Ret. from Indian Wells WTA Singles | |
| 2021-10-04 | Martina Trevisan (ITA) | Leg Injury - Ret. from Indian Wells WTA Singles | |
| 2021-10-04 | Nadia Podoroska (ARG) | Thigh injury - WD from Indian Wells WTA Singles | |
| 2021-10-04 | Catherine Mcnally (USA) | Unknown - WD from Indian Wells WTA Singles | |
| 2021-10-04 | Belinda Bencic (SUI) | Knee injury - WD from Indian Wells WTA Singles | |
| 2021-10-04 | Viktoriya Tomova (BUL) | Illness - WD from Indian Wells WTA Singles Q | |
| 2021-10-04 | Alessandro Giannessi (ITA) | Unknown - Ret. from Napoli Ch Singles | |
| 2021-10-04 | Bogdan Ionut Apostol (ROU) | Unknown - Ret. from Napoli Ch Singles | |
| 2021-10-04 | Julian Ocleppo (ITA) | Unknown - Ret. from Napoli Ch Singles | |
| 2021-10-04 | Duje Ajdukovic (CRO) | Right Bicipte - Ret. from Napoli Ch Singles | |
| 2021-10-04 | Giulio Zeppieri (ITA) | Right Ankle - WD from Napoli Ch Singles | |
| 2021-10-04 | Alexandru Jecan (ROU) | Right Ankle - WD from Napoli Ch Singles | |
| 2021-10-04 | Adrian Andreev (BUL) | Right Elbow - Ret. from Barcelona Ch Singles | |
| 2021-10-04 | Bernabe Zapata Miralles (ESP) | Stomach - Ret. from Barcelona Ch Singles | |
| 2021-10-04 | Cedrik-Marcel Stebe (GER) | Right Adductor - WD from Barcelona Ch Singles | |
| 2021-10-04 | Pedro Cachin (ARG) | Right Leg - WD from Barcelona Ch Singles | |
| 2021-10-04 | Ronald Slobodchikov (RUS) | Right Hip - WD from Barcelona Ch Singles Q | |
| 2021-10-04 | Pedro Sakamoto (BRA) | Back - WD from Santiago Ch Singles Q | |
| 2021-10-04 | Kamil Majchrzak (POL) | Right Forearm - Ret. from Mouilleron-Le-Captif Ch Singles | |
| 2021-10-04 | Gilles Simon (FRA) | Upper Back - W/O from Mouilleron-Le-Captif Ch Singles | |
| 2021-10-04 | Henri Laaksonen (SUI) | Fatigue - WD from Mouilleron-Le-Captif Ch Singles | |
| 2021-10-04 | Marius Copil (ROU) | Illness - WD from Mouilleron-Le-Captif Ch Singles | |
| 2021-09-27 | Belinda Bencic (SUI) | Right Knee - Ret. from Chicago WTA Singles | |
| 2021-09-27 | Victoria Azarenka (BLR) | No Reason Given - W/O from Chicago WTA Singles | |
| 2021-09-27 | Lauren Davis (USA) | Ilness - WD from Chicago WTA Singles | |
| 2021-09-27 | Anett Kontaveit (EST) | Left Thigh - W/O from Chicago WTA Singles | |
| 2021-09-27 | Madison Keys (USA) | Right Shoulder Injury - Ret. from Chicago WTA Singles | |
| 2021-09-27 | Monica Niculescu (ROU) | Left Knee - W/O from Nur-Sultan WTA Singles Q | |
| 2021-09-27 | Anna Blinkova (RUS) | Right Back - WD from Nur-Sultan WTA Singles | |
| 2021-09-27 | Vitalia Diatchenko (RUS) | Back - Ret. from Nur-Sultan WTA Singles | |
| 2021-09-27 | Mandy Minella (LUX) | Back Pain - Ret. from Nur-Sultan WTA Singles | |
| 2021-09-27 | Felix Auger Alliassime (CAN) | Adductor strain - WD from San Diego ATP Singles | |
| 2021-09-27 | Soon Woo Kwon (KOR) | Shoulder - WD from San Diego ATP Singles | |
| 2021-09-27 | Kei Nishikori (JPN) | Back - WD from San Diego ATP Singles | |
| 2021-09-27 | Alexander Erler (AUT) | Stomach Ilness - WD from Sibiu Ch Singles | |
| 2021-09-27 | Marco Trungelliti (ARG) | Left Foot - W/O from Murcia Ch Singles | |
| 2021-09-27 | Nicolas Alvarez Varona (ESP) | Left Leg - Ret. from Murcia Ch Singles Q | |
| 2021-09-27 | Lorenzo Giustino (ITA) | Cramping - Ret. from Lisbon Ch Singles | |
| 2021-09-27 | Cedrik-Marcel Stebe (GER) | Right Adductor - Ret. from Lisbon Ch Singles | |
| 2021-09-27 | Alessandro Giannessi (ITA) | Left Elbow - WD from Lisbon Ch Singles | |
| 2021-09-27 | Pedro Sakamoto (BRA) | Back - Ret. from Lima Ch Singles | |
| 2021-09-27 | Genaro Alberto Olivieri (ARG) | Back - Ret. from Lima Ch Singles | |
| 2021-09-27 | Juan Manuel Cerundolo (ARG) | Cramping - Ret. from Lima Ch Singles | |
| 2021-09-27 | Eduard Esteve Lobato (ESP) | Right Ankle - Ret. from Lima Ch Singles | |
| 2021-09-27 | Feliciano Lopez (ESP) | Elbow - WD from Orleans Ch Singles | |
| 2021-09-20 | Karolina Muchova (CZE) | Left Abdominal Injury - WD from Ostrava WTA Singles | |
| 2021-09-20 | Danielle Lao (USA) | Right Shoulder Injury - Ret. from Columbus WTA Singles | |
| 2021-09-20 | Pedro Martinez (ESP) | Left Wrist - WD from Metz ATP Singles | |
| 2021-09-20 | Jeremy Chardy (FRA) | Back - WD from Metz ATP Singles | |
| 2021-09-20 | Richard Gasquet (FRA) | Hamstring - WD from Metz ATP Singles | |
| 2021-09-20 | Alexei Popyrin (AUS) | Toe - WD from Metz ATP Singles | |
| 2021-09-20 | Benjamin Bonzi (FRA) | Ilness - Ret. from Nur-Sultan ATP Singles | |
| 2021-09-20 | Gian Marco Moroni (ITA) | Hamstring - Ret. from Nur-Sultan ATP Singles Q | |
| 2021-09-20 | Bernard Tomic (AUS) | Right Finger - Ret. from Nur-Sultan ATP Singles Q | |
| 2021-09-20 | Dominic Stephan Stricker (SUI) | Left Knee - Ret. from Biel Ch Singles | |
| 2021-09-20 | Pierre-Hugues Herbert (FRA) | Lower Back - WD from Biel Ch Singles | |
| 2021-09-20 | Remy Bertola (SUI) | Back - Ret. from Biel Ch Singles Q | |
| 2021-09-20 | Gastao Elias (POR) | Right Elbow - WD from Braga Ch Singles | |
| 2021-09-20 | Steven Diez (CAN) | Lower Back - Ret. from Braga Ch Singles | |
| 2021-09-20 | Michael Vrbensky (CZE) | Lower Back - Ret. from Braga Ch Singles | |
| 2021-09-20 | Dalibor Svrcina (CZE) | Cramping - Ret. from Braga Ch Singles Q | |
| 2021-09-20 | Christian Harrison (USA) | Shoulder - WD from Columbus Ch Singles | |
| 2021-09-20 | Nerman Fatic (BIH) | Not Specified - Ret. from Ambato Ch Singles | |
| 2021-09-20 | Hugo Dellien (BOL) | Not Specified - WD from Ambato Ch Singles | |
| 2021-09-20 | Goncalo Oliveira (POR) | Ilness - WD from Ambato Ch Singles | |
| 2021-09-13 | Stefan Kozlov (USA) | Right Ankle - Ret. from Cary Ch Singles | |
| 2021-09-13 | Yusuke Takahashi (JPN) | Heat Ilness - Ret. from Cary Ch Singles Q | |
| 2021-09-13 | Jean Thirouin (FRA) | Heat Ilness - Ret. from Cary Ch Singles Q | |
| 2021-09-13 | Sergiy Stakhovsky (UKR) | Sickness - WD from Rennes Ch Singles | |
| 2021-09-13 | Yosuke Watanuki (JPN) | Left Ankle - WD from Rennes Ch Singles | |
| 2021-09-13 | Pedro Martinez (ESP) | Ilness - WD from Szczecin Ch Singles | |
| 2021-09-13 | Tomas Martin Etcheverry (ARG) | Personal - WD from Szczecin Ch Singles | |
| 2021-09-13 | Alexey Vatutin (RUS) | Right Elbow - Ret. from Szczecin Ch Singles | |
| 2021-09-13 | Nicola Kuhn (ESP) | Lower Back - Ret. from Szczecin Ch Singles | |
| 2021-09-13 | Sadio Doumbia (FRA) | Lower Back - Ret. from Szczecin Ch Singles Q | |
| 2021-09-06 | Manuel Guinard (FRA) | Lower Back - Ret. from Banja Luka Ch Singles | |
| 2021-09-06 | Matija Pecotic (CRO) | Lower Back - W/O from Banja Luka Ch Singles | |
| 2021-09-06 | Pedja Krstin (SRB) | Neck - Ret. from Banja Luka Ch Singles | |
| 2021-09-06 | Mikhail Kukushkin (KAZ) | Right Achiles - Ret. from Cassis Ch Singles | |
| 2021-09-06 | Lukas Lacko (SVK) | Personal - WD from Cassis Ch Singles | |
| 2021-09-06 | Christopher O'Connell (AUS) | Left Adductor - WD from Cassis Ch Singles | |
| 2021-09-06 | Yasutaka Uchiyama (JPN) | Right Thigh - WD from Cassis Ch Singles | |
| 2021-09-06 | Tung-Lin Wu (TPE) | Right Ankle - Ret. from Cassis Ch Singles Q | |
| 2021-09-06 | Denis Yevseyev (KAZ) | Right Elbow - Ret. from Kyiv Ch Singles Q | |
| 2021-09-06 | Jack Draper (GBR) | Right Leg - Ret. from Seville Ch Singles | |
| 2021-09-06 | Carlos Gimeno Valero (ESP) | Left Knee - Ret. from Seville Ch Singles | |
| 2021-09-06 | Camilo Ugo Carabelli (ARG) | Dizziness - Ret. from Seville Ch Singles | |
| 2021-09-06 | Pedro Cachin (ARG) | Right Leg - WD from Seville Ch Singles | |
| 2021-08-30 | Christopher O'Connell (AUS) | Adductors - Ret. from St. Tropez Ch Singles | |
| 2021-08-30 | Tung-Lin Wu (TPE) | Right Ankle - WD from St. Tropez Ch Singles | |
| 2021-08-30 | Roberto Marcora (ITA) | Neck - WD from St. Tropez Ch Singles | |
| 2021-08-30 | Maxime Janvier (FRA) | Right shoulder - WD from St. Tropez Ch Singles | |
| 2021-08-30 | Steven Diez (CAN) | Left Leg - Ret. from Mallorca Ch Singles | |
| 2021-08-30 | Sebastian Ofner (AUT) | Left Foot - Ret. from Mallorca Ch Singles | |
| 2021-08-30 | Yosuke Watanuki (JPN) | Right Ankle - WD from Mallorca Ch Singles | |
| 2021-08-30 | Borna Gojo (CRO) | Stomach - WD from Mallorca Ch Singles | |
| 2021-08-30 | Evan Furness (FRA) | Low back - Ret. from Como Ch Singles | |
| 2021-08-30 | Giulio Zeppieri (ITA) | Sore throat - Ret. from Como Ch Singles | |
| 2021-08-30 | Andrea Vavassori (ITA) | Cramping - Ret. from Como Ch Singles | |
| 2021-08-30 | Daniel Altmaier (GER) | Stomacache - Ret. from Como Ch Singles | |
| 2021-08-30 | Alessandro Giannessi (ITA) | Left Elbow - WD from Como Ch Singles | |
| 2021-08-30 | Jelle Sels (NED) | Headache - Ret. from Como Ch Singles Q | |
| 2021-08-23 | Jeremy Jahn (GER) | Left Hip - Ret. from Barletta Ch Singles | |
| 2021-08-23 | Ryan Harrison (USA) | Left Upper Leg - Ret. from Barletta Ch Singles | |
| 2021-08-23 | Juan Manuel Cerundolo (ARG) | Left Arm - Ret. from Barletta Ch Singles | |
| 2021-08-23 | Leo Borg (SWE) | Back - Ret. from Warsaw Ch Singles | |
| 2021-08-23 | John Millman (AUS) | Foot - WD from Winston-Salem ATP Singles | |
| 2021-08-23 | David Goffin (BEL) | Left knee - WD from Winston-Salem ATP Singles | |
| 2021-08-23 | Nikoloz Basilashvili (GEO) | Illness - WD from Winston-Salem ATP Singles | |
| 2021-08-23 | Nick Kyrgios (AUS) | Left knee - WD from Winston-Salem ATP Singles | |
| 2021-08-23 | Tereza Martincova (CZE) | Muscle cramping - Ret. from Chicago WTA Singles | |
| 2021-08-23 | Alison Van Uytvanck (BEL) | Dizziness - Ret. from Chicago WTA Singles | |
| 2021-08-23 | Ana Bogdan (ROU) | Heat Illness - Ret. from Chicago WTA Singles | |
| 2021-08-23 | Heather Watson (GBR) | Left thigh - Ret. from Chicago WTA Singles | |
| 2021-08-23 | Clara Burel (FRA) | Dizziness - Ret. from Chicago WTA Singles | |
| 2021-08-16 | John Millman (AUS) | Foot - WD from Cincinnati TMS Singles | |
| 2021-08-16 | Jack Sock (USA) | Groin - Ret. from Cincinnati TMS Singles Q | |
| 2021-08-16 | Petra Kvitova (CZE) | Stomach - Ret. from Cincinnati WTA Singles | |
| 2021-08-16 | Paula Badosa (ESP) | Right Shoulder - Ret. from Cincinnati WTA Singles | |
| 2021-08-16 | Simona Halep (ROU) | Right Thigh - W/O from Cincinnati WTA Singles | |
| 2021-08-16 | Jennifer Brady (USA) | Left Foot - Ret. from Cincinnati WTA Singles | |
| 2021-08-16 | Danielle Collins (USA) | Left Hip - Ret. from Cincinnati WTA Singles | |
| 2021-08-16 | Hugo Dellien (BOL) | Shoulder - WD from Luedenscheid Ch Singles | |
| 2021-08-16 | Robin Haase (NED) | Hip - W/O from Luedenscheid Ch Singles | |
| 2021-08-16 | Roberto Carballes Baena (ESP) | Back - Ret. from Luedenscheid Ch Singles | |
| 2021-08-09 | Geoffrey Blancaneaux (FRA) | Right Ankle - Ret. from Prague Ch Singles | |
| 2021-08-09 | Alex Molcan (SVK) | Left Groin - WD from Meerbusch Ch Singles | |
| 2021-08-09 | Nicola Kuhn (ESP) | Medical - W/O from Meerbusch Ch Singles | |
| 2021-08-09 | Malek Jaziri (TUN) | General fatigue - Ret. from San Marino Ch Singles | |
| 2021-08-09 | Jay Clarke (GBR) | Neck - W/O from San Marino Ch Singles | |
| 2021-08-09 | Johanna Konta (GBR) | Left Knee Injury - Ret. from Canada WTA Singles | |
| 2021-08-09 | Anastasia Potapova (RUS) | Left Ankle Injury - Ret. from Canada WTA Singles | |
| 2021-08-09 | Shuai Zhang (CHN) | Left Leg Injury - Ret. from Canada WTA Singles | |
| 2021-08-09 | Ajla Tomljanovic (AUS) | Right Hip Injury - Ret. from Canada WTA Singles | |
| 2021-08-09 | Tereza Martincova (CZE) | Abdominal Pain - Ret. from Canada WTA Singles | |
| 2021-08-09 | Marie Bouzkova (CZE) | Dizzines - Ret. from Canada WTA Singles | |
| 2021-08-09 | Rafael Nadal (ESP) | Left Foot - WD from Canada TMS Singles | |
| 2021-08-09 | Sebastian Korda (USA) | Low back pain - WD from Canada TMS Singles | |
| 2021-08-09 | Kei Nishikori (JPN) | Shoulder - WD from Canada TMS Singles | |
| 2021-08-02 | Jiri Vesely (CZE) | Neck Pain - WD from Liberec Ch Singles | |
| 2021-08-02 | Alison Van Uytvanck (BEL) | Low Back Injury - WD from Concord WTA Singles | |
| 2021-08-02 | Maddison Inglis (AUS) | Difficulty breathing - Ret. from Concord WTA Singles | |
| 2021-08-02 | Veronika Kudermetova (RUS) | Illness - WD from San Jose WTA Singles | |
| 2021-08-02 | Lesia Tsurenko (UKR) | Back Muscle Spasm - Ret. from Cluj-Napoca WTA Singles | |
| 2021-08-02 | Alexandra Dulgheru (ROU) | Left Knee - Ret. from Cluj-Napoca WTA Singles | |
| 2021-08-02 | Yuki Naito (JPN) | Left Thigh injury - Ret. from Cluj-Napoca WTA Singles | |
| 2021-08-02 | Yoshihito Nishioka (JPN) | Right Leg - Ret. from Washington ATP Singles | |
| 2021-08-02 | Tennys Sandgren (USA) | Rib Contusion - Ret. from Washington ATP Singles | |
| 2021-07-26 | Sachia Vickery (USA) | Heat Illness - Ret. from Charleston WTA Singles | |
| 2021-07-26 | Marco Trungelliti (ARG) | Right Hip - Ret. from Trieste Ch Singles | |
| 2021-07-26 | Danilo Petrovic (SRB) | Illness - WD from Trieste Ch Singles | |
| 2021-07-26 | Uladzimir Ignatik (BLR) | Right Finger - Ret. from Trieste Ch Singles Q | |
| 2021-07-26 | Ulises Blanch (USA) | Cramps & Spasms - Ret. from Lexington Ch Singles | |
| 2021-07-26 | Alex Bolt (AUS) | Abdominal Strain - WD from Lexington Ch Singles | |
| 2021-07-26 | Alex Rybakov (USA) | Heat Exhaustion - Ret. from Lexington Ch Singles Q | |
| 2021-07-26 | Ryan Harrison (USA) | Hamstring Strain - Ret. from Lexington Ch Singles Q | |
| 2021-07-26 | Petros Chrysochos (CYP) | Abdominal Strain - Ret. from Lexington Ch Singles Q | |
| 2021-07-26 | Alexis Galarneau (CAN) | Calf Strain - Ret. from Lexington Ch Singles Q | |
| 2021-07-26 | Henri Laaksonen (SUI) | Leg - WD from Poznan Ch Singles | |
| 2021-07-26 | Hugo Gaston (FRA) | Fatigue - WD from Poznan Ch Singles | |
| 2021-07-26 | Corentin Denolly (FRA) | Illness - WD from Poznan Ch Singles Q | |
| 2021-07-26 | Frederico Ferreira Silva (POR) | Right Ankle - Ret. from Segovia Ch Singles | |
| 2021-07-26 | Gregoire Barrere (FRA) | Right Calf - WD from Segovia Ch Singles | |
| 2021-07-26 | Richard Gasquet (FRA) | Personal - WD from Kitzbuhel ATP Singles | |
| 2021-07-26 | Aljaz Bedene (SLO) | Fatgiue - WD from Kitzbuhel ATP Singles | |
| 2021-07-26 | Juan Ignacio Londero (ARG) | Stomach - Ret. from Kitzbuhel ATP Singles Q | |
| 2021-07-26 | Sebastian Ofner (AUT) | Illness - Ret. from Atlanta ATP Singles Q | |
| 2021-07-19 | Tereza Martincova (CZE) | Right Knee - WD from Gdynia WTA Singles | |
| 2021-07-19 | Stefanie Voegele (SUI) | Illness - WD from Gdynia WTA Singles | |
| 2021-07-19 | Clara Burel (FRA) | Right Ankle - WD from Gdynia WTA Singles | |
| 2021-07-19 | Anhelina Kalinina (UKR) | Left Leg - WD from Gdynia WTA Singles | |
| 2021-07-19 | Anna Danilina (KAZ) | Illness - Ret. from Gdynia WTA Singles Q | |
| 2021-07-19 | Goncalo Oliveira (POR) | Low Back - Ret. from Tampere Ch Singles | |
| 2021-07-19 | Manuel Guinard (FRA) | Muscle strain - WD from Tampere Ch Singles | |
| 2021-07-19 | Henri Laaksonen (SUI) | Left Abductor - WD from Tampere Ch Singles | |
| 2021-07-19 | Roman Safiullin (RUS) | Tonsillitis - WD from Nur-Sultan Ch Singles | |
| 2021-07-19 | Nicola Kuhn (ESP) | Low Back Pain - Ret. from Pozoblanco Ch Singles | |
| 2021-07-19 | Carlos Gimeno Valero (ESP) | Illness - WD from Pozoblanco Ch Singles | |
| 2021-07-19 | Ronald Slobodchikov (RUS) | Illness - WD from Pozoblanco Ch Singles Q | |
| 2021-07-19 | Alexander Zhurbin (RUS) | Illness - WD from Pozoblanco Ch Singles Q | |
| 2021-07-19 | Ryan Harrison (USA) | Not Specified - W/O from Cary Ch Singles Q | |
| 2021-07-19 | Jurij Rodionov (AUT) | Fatigue - Ret. from Los Cabos ATP Singles | |
| 2021-07-19 | Yosuke Watanuki (JPN) | Cramping - Ret. from Los Cabos ATP Singles Q | |
| 2021-07-19 | Salvatore Caruso (ITA) | Groin Strain - WD from Umag ATP Singles | |
| 2021-07-19 | Corentin Moutet (FRA) | Not Specified - Ret. from Umag ATP Singles | |
| 2021-07-19 | Alex Molcan (SVK) | Low Back - WD from Gstaad ATP Singles | |
| 2021-07-19 | Yannick Hanfmann (GER) | Illness - WD from Gstaad ATP Singles | |
| 2021-07-19 | Marc-Andrea Huesler (SUI) | Left Toe - Ret. from Gstaad ATP Singles | |
| 2021-07-12 | Danielle Collins (USA) | Right Arm - WD from Budapest WTA Singles | |
| 2021-07-12 | Timea Babos (HUN) | Left Hip - Ret. from Budapest WTA Singles | |
| 2021-07-12 | Marketa Vondrousova (CZE) | Left Thigh - WD from Prague WTA Singles | |
| 2021-07-12 | Su-Wei Hsieh (TPE) | Left Hip - WD from Prague WTA Singles | |
| 2021-07-12 | Barbora Miklova (CZE) | Right Ankle - Ret. from Prague WTA Singles Q | |
| 2021-07-12 | Alexander Maarten Jong (NED) | Right Leg - Ret. from Amersfoort Ch Singles | |
| 2021-07-12 | Matteo Arnaldi (ITA) | Right Hand - Ret. from Todi Ch Singles | |
| 2021-07-12 | Vitaliy Sachko (UKR) | Knee - WD from Todi Ch Singles | |
| 2021-07-12 | Elliot Benchetrit (MAR) | Back - WD from Iasi Ch Singles | |
| 2021-07-12 | Jeremy Jahn (GER) | Administrative - WD from Iasi Ch Singles | |
| 2021-07-12 | Alexis Gautier (FRA) | Heat exhaustion - Ret. from Iasi Ch Singles Q | |
| 2021-07-12 | Henri Laaksonen (SUI) | Groin - W/O from Bastad ATP Singles | |
| 2021-07-12 | Cedrik-Marcel Stebe (GER) | Leg - Ret. from Newport ATP Singles | |
| 2021-07-12 | Ricardas Berankis (LTU) | Right ankle - Ret. from Hamburg ATP Singles | |
| 2021-07-12 | Sebastian Baez (ARG) | Illness - W/O from Hamburg ATP Singles | |
| 2021-07-12 | Aljaz Bedene (SLO) | Illness - WD from Hamburg ATP Singles | |
| 2021-07-05 | Alize Cornet (FRA) | Illness - WD from Hamburg WTA Singles | |
| 2021-07-05 | Noma Noha Akugue (GER) | Illness - Ret. from Hamburg WTA Singles Q | |
| 2021-07-05 | Anna Kalinskaya (RUS) | Illness - Ret. from Bastad WTA Singles | |
| 2021-07-05 | Evan Furness (FRA) | Left Knee - Ret. from Perugia Ch Singles | |
| 2021-07-05 | Nuno Borges (POR) | Right Ankle - Ret. from Perugia Ch Singles | |
| 2021-07-05 | Ricardas Berankis (LTU) | Knee - WD from Braunschweig Ch Singles | |
| 2021-07-05 | Matteo Donati (ITA) | Left Leg - Ret. from Braunschweig Ch Singles Q | |
| 2021-07-05 | Lukas Lacko (SVK) | Fatigue - WD from Salzburg-Anif Ch Singles | |
| 2021-06-28 | Roberto Cid (DOM) | Right Shoulder - Ret. from Porto Ch Singles | |
| 2021-06-28 | Frederico Ferreira Silva (POR) | Right Ankle - Ret. from Porto Ch Singles | |
| 2021-06-28 | Aleksandar Vukic (AUS) | Right Foot - WD from Porto Ch Singles | |
| 2021-06-28 | Tiago Cacao (POR) | Left Knee - Ret. from Porto Ch Singles Q | |
| 2021-06-21 | Donna Vekic (CRO) | Right Knee - WD from Eastbourne WTA Singles | |
| 2021-06-21 | Camila Giorgi (ITA) | Left Thigh - Ret. from Eastbourne WTA Singles | |
| 2021-06-21 | Vera Zvonareva (RUS) | Left Hip - Ret. from Eastbourne WTA Singles | |
| 2021-06-21 | Sloane Stephens (USA) | Right foot - WD from Bad Homburg WTA Singles | |
| 2021-06-21 | Victoria Azarenka (BLR) | No Reason Provided - W/O from Bad Homburg WTA Singles | |
| 2021-06-21 | Adrian Menendez-Maceiras (ESP) | Left Leg - Ret. from Milan Ch Singles | |
| 2021-06-21 | Facundo Mena (ARG) | Right Knee - Ret. from Milan Ch Singles | |
| 2021-06-21 | Alejandro Davidovich Fokina (ESP) | Lower Back - Ret. from Eastbourne ATP Singles | |
| 2021-06-21 | Nikoloz Basilashvili (GEO) | No Reason Provided - WD from Eastbourne ATP Singles | |
| 2021-06-21 | Cameron Norrie (GBR) | Fatigue - WD from Eastbourne ATP Singles | |
| 2021-06-21 | Reilly Opelka (USA) | Left Hip - WD from Eastbourne ATP Singles | |
| 2021-06-21 | Richard Gasquet (FRA) | Lower Back - WD from Eastbourne ATP Singles | |
| 2021-06-21 | Dominic Thiem (AUT) | Right wrist - Ret. from Mallorca ATP Singles | |
| 2021-06-21 | Ugo Humbert (FRA) | Abdominal pain - W/O from Mallorca ATP Singles | |
| 2021-06-14 | Shuai Zhang (CHN) | Leg - Ret. from Birmingham WTA Singles | |
| 2021-06-14 | Maria Camila Osorio Serrano (COL) | Left Tight - WD from Birmingham WTA Singles Q | |
| 2021-06-14 | Dalila Jakupovic (SLO) | Left Ankle - Ret. from Birmingham WTA Singles Q | |
| 2021-06-14 | Varvara Lepchenko (USA) | Left Hip - Ret. from Berlin WTA Singles Q | |
| 2021-06-14 | Hailey Baptiste (USA) | Right Knee - Ret. from Berlin WTA Singles | |
| 2021-06-14 | Andrea Arnaboldi (ITA) | Right Leg - Ret. from Forli Ch Singles | |
| 2021-06-14 | David Pichler (AUT) | Cramps - Ret. from Forli Ch Singles Q | |
| 2021-06-14 | Dimitar Kuzmanov (BUL) | Hip - Ret. from Almaty Ch Singles | |
| 2021-06-14 | Pedja Krstin (SRB) | Hypotension - Ret. from Almaty Ch Singles | |
| 2021-06-14 | Felipe Meligeni Rodrigues Alves (BRA) | Leg - WD from Almaty Ch Singles | |
| 2021-06-14 | Juan Manuel Cerundolo (ARG) | Right Thigh - Ret. from Prostejov Ch Singles | |
| 2021-06-14 | Darian King (BAR) | Left Wrist - WD from Prostejov Ch Singles | |
| 2021-06-14 | Martin Klizan (SVK) | Right calf - WD from Prostejov Ch Singles | |
| 2021-06-14 | Filip Horansky (SVK) | Right groin - WD from Prostejov Ch Singles | |
| 2021-06-14 | Vaclav Safranek (CZE) | Right Wrist - WD from Prostejov Ch Singles Q | |
| 2021-06-14 | Ivan Nedelko (RUS) | Right Hand - Ret. from Prostejov Ch Singles Q | |
| 2021-06-14 | Oscar Otte (GER) | Left Hip - Ret. from Aix en Provence Ch Singles | |
| 2021-06-14 | Constant Lestienne (FRA) | Left Achilles - WD from Aix en Provence Ch Singles | |
| 2021-06-14 | Prajnesh Gunneswaran (IND) | Left Wrist - WD from Nottingham Ch Singles | |
| 2021-06-14 | Richard Gasquet (FRA) | Lower Back - Ret. from Nottingham Ch Singles | |
| 2021-06-14 | Thanasi Kokkinakis (AUS) | Abdominal - Ret. from Nottingham Ch Singles Q | |
| 2021-06-14 | Matthew Ebden (AUS) | Fatigue - Ret. from Nottingham Ch Singles Q | |
| 2021-06-14 | Filip Krajinovic (SRB) | Illness - WD from Queens Club ATP Singles | |
| 2021-06-14 | David Goffin (BEL) | Left Ankle - Ret. from Halle ATP Singles | |
| 2021-06-14 | Yannick Maden (GER) | Left Achilles - Ret. from Halle ATP Singles Q | |
| 2021-06-14 | Cedrik-Marcel Stebe (GER) | Left Foot - Ret. from Halle ATP Singles Q | |
| 2021-06-07 | Katarina Zavatska (UKR) | Left Leg Pain - Ret. from Bol WTA Singles | |
| 2021-06-07 | Danielle Collins (USA) | Abdominal injury - WD from Nottingham WTA Singles | |
| 2021-06-07 | Astra Sharma (AUS) | Left abdominal injury - WD from Nottingham WTA Singles | |
| 2021-06-07 | Katie Boulter (GBR) | Right elbow injury - Ret. from Nottingham WTA Singles | |
| 2021-06-07 | Kristie Ahn (USA) | Breathing difficulty - Ret. from Nottingham WTA Singles | |
| 2021-06-07 | Jurij Rodionov (AUT) | Right Leg - Ret. from Stuttgart ATP Singles | |
| 2021-06-07 | John Millman (AUS) | Back - WD from Stuttgart ATP Singles | |
| 2021-06-07 | Christopher O'Connell (AUS) | Right Ankle - Ret. from Stuttgart ATP Singles Q | |
| 2021-06-07 | Jenson Brooksby (USA) | Tendernitis, right elbow - W/O from Orlando Ch Singles | |
| 2021-06-07 | Dmitry Popko (KAZ) | Headache - Ret. from Almaty Ch Singles | |
| 2021-06-07 | Lukas Lacko (SVK) | Eye Infection - WD from Bratislava Ch Singles | |
| 2021-06-07 | Laurent Lokoli (FRA) | Low back - Ret. from Lyon Ch Singles | |
| 2021-06-07 | Holger Vitus Nodskov Rune (DEN) | Right shoulder - Ret. from Lyon Ch Singles | |
| 2021-06-07 | Constant Lestienne (FRA) | Right leg - Ret. from Lyon Ch Singles | |
| 2021-06-07 | Alejandro Tabilo (CHI) | Low back - WD from Lyon Ch Singles | |
| 2021-06-07 | Alessandro Giannessi (ITA) | Low back - WD from Lyon Ch Singles | |
| 2021-06-07 | Ronald Slobodchikov (RUS) | Stomach - WD from Lyon Ch Singles Q | |
| 2021-06-07 | Prajnesh Gunneswaran (IND) | Left Wrist - Ret. from Nottingham Ch Singles | |
| 2021-06-07 | Max Purcell (AUS) | Back - Ret. from Nottingham Ch Singles Q | |
| 2021-05-31 | Luca Nardi (ITA) | Left ankle - Ret. from Biella Ch Singles | |
| 2021-05-31 | Danilo Petrovic (SRB) | Right foot blister - Ret. from Biella Ch Singles | |
| 2021-05-31 | Oliver Crawford (USA) | Cramping - Ret. from Little Rock Ch Singles | |
| 2021-05-31 | Michael Mmoh (USA) | Shoulder issue - WD from Little Rock Ch Singles | |
| 2021-05-31 | Adrian Andreev (BUL) | Right ankle - Ret. from Little Rock Ch Singles Q | |
| 2021-05-24 | Nuno Borges (POR) | Left ankle - Ret. from Oeiras Ch Singles | |
| 2021-05-17 | Andrea Collarini (ARG) | Abdominal strain - Ret. from Biella Ch Singles | |
| 2021-05-17 | Felipe Meligeni Rodrigues Alves (BRA) | Achilles tendon - Ret. from Biella Ch Singles | |
| 2021-05-17 | Akira Santillan (AUS) | Right Ankle - Ret. from Biella Ch Singles Q | |
| 2021-05-17 | Ronald Slobodchikov (RUS) | Non-Medical - W/O from Biella Ch Singles Q | |
| 2021-05-17 | Damir Dzumhur (BIH) | Right Ankle - Ret. from Oeiras Ch Singles | |
| 2021-05-17 | Carlos Taberner (ESP) | Abdominal - Ret. from Oeiras Ch Singles | |
| 2021-05-17 | Jiri Vesely (CZE) | Left Shoulder - Ret. from Oeiras Ch Singles | |
| 2021-05-17 | Arantxa Rus (NED) | Leg Injury - WD from Parma WTA Singles | |
| 2021-05-17 | Giulia Gatto-Monticone (ITA) | Right Leg - Ret. from Parma WTA Singles | |
| 2021-05-17 | Anastasia Pavlyuchenkova (RUS) | Abdominal - WD from Belgrade WTA Singles | |
| 2021-05-17 | Ajla Tomljanovic (AUS) | Left Hip Injury - Ret. from Belgrade WTA Singles | |
| 2021-05-17 | Dejana Radanovic (SRB) | Low Back Injury - Ret. from Belgrade WTA Singles Q | |
| 2021-05-17 | Lorenzo Sonego (ITA) | Non-Medical - WD from Lyon ATP Singles | |
| 2021-05-17 | Lloyd George Harris (RSA) | Low Back - WD from Lyon ATP Singles | |
| 2021-05-17 | Albert Ramos-Vinolas (ESP) | Right Leg - WD from Lyon ATP Singles | |
| 2021-05-17 | Christian Garin (CHI) | Right Shoulder - WD from Geneva ATP Singles | |
| 2021-05-17 | Stefano Travaglia (ITA) | Low Back - Ret. from Geneva ATP Singles | |
| 2021-05-10 | Jason Jung (TPE) | Right Ankle - Ret. from Zagreb Ch Singles | |
| 2021-05-10 | Juan Manuel Cerundolo (ARG) | Left Ankle - Ret. from Zagreb Ch Singles | |
| 2021-05-10 | Aleksandar Vukic (AUS) | Right Leg - Ret. from Heilbronn Ch Singles | |
| 2021-05-10 | Cedrik-Marcel Stebe (GER) | Right Foot - WD from Heilbronn Ch Singles | |
| 2021-05-10 | Peter Gojowczyk (GER) | Right Hip - WD from Heilbronn Ch Singles | |
| 2021-05-10 | Pablo Carreno-Busta (ESP) | Low Back - W/O from Rome TMS Singles | |
| 2021-05-10 | Anastasia Pavlyuchenkova (RUS) | Abdominal - WD from Rome WTA Singles | |
| 2021-05-10 | Karolina Muchova (CZE) | Left Abdominal Injury - WD from Rome WTA Singles | |
| 2021-05-10 | Ashleigh Barty (AUS) | Right Arm Injury - Ret. from Rome WTA Singles | |
| 2021-05-10 | Jennifer Brady (USA) | Left Foot Injury - W/O from Rome WTA Singles | |
| 2021-05-10 | Simona Halep (ROU) | Lower Leg Injury - Ret. from Rome WTA Singles | |
| 2021-05-10 | Alison Riske (USA) | Left Foot Injury - Ret. from Rome WTA Singles | |
| 2021-05-10 | Venus Williams (USA) | Left knee - WD from Rome WTA Singles | |
| 2021-05-10 | Bianca Andreescu (CAN) | Illness - WD from Rome WTA Singles | |
| 2021-05-10 | Hubert Hurkacz (POL) | Fatigue - Ret. from Rome TMS Singles | |
| 2021-05-10 | Casper Ruud (NOR) | Wrist - WD from Rome TMS Singles | |
| 2021-05-10 | Guido Pella (ARG) | Right Hip - WD from Rome TMS Singles | |
| 2021-05-10 | Frances Tiafoe (USA) | Not Specified - Ret. from Rome TMS Singles Q | |
| 2021-05-10 | Flavio Cobolli (ITA) | Right Hip - Ret. from Rome TMS Singles Q | |
| 2021-05-10 | Radu Albot (MDA) | Gastritis - WD from Rome TMS Singles Q | |
| 2021-05-03 | Thanasi Kokkinakis (AUS) | Right pectoral injury - WD from Biella Ch Singles | |
| 2021-05-03 | Aleksandar Vukic (AUS) | Right ankle injury - WD from Biella Ch Singles | |
| 2021-05-03 | Elliot Benchetrit (MAR) | Back Injury - Ret. from Biella Ch Singles Q | |
| 2021-05-03 | Yuichi Sugita (JPN) | Right Calf Pain - Ret. from Prague Ch Singles | |
| 2021-05-03 | Lloyd George Harris (RSA) | Lower Back - Ret. from Madrid TMS Singles | |
| 2021-05-03 | Cameron Norrie (GBR) | Foot - WD from Madrid TMS Singles | |
| 2021-04-29 | Elise Mertens (BEL) | Hamstring - Ret. from Madrid WTA Singles | |
| 2021-04-29 | Ons Jabeur (TUN) | Leg - Ret. from Madrid WTA Singles | |
| 2021-04-29 | Victoria Azarenka (BLR) | Low back injury - W/O from Madrid WTA Singles | |
| 2021-04-29 | Garbine Muguruza (ESP) | Left thigh - WD from Madrid WTA Singles | |
| 2021-04-29 | Svetlana Kuznetsova (RUS) | Hamstring - WD from Madrid WTA Singles | |
| 2021-04-29 | Marie Bouzkova (CZE) | Right hand - Ret. from Madrid WTA Singles | |
| 2021-04-26 | Pedro Sakamoto (BRA) | Low Back - Ret. from Salinas Ch Singles | |
| 2021-04-26 | Gonzalo Lama (CHI) | Right Wrist - Ret. from Salinas Ch Singles Q | |
| 2021-04-26 | Sebastian Baez (ARG) | Left Leg - Ret. from Ostrava Ch Singles | |
| 2021-04-26 | Hugo Grenier (FRA) | Left Leg - Ret. from Ostrava Ch Singles Q | |
| 2021-04-26 | Tobias Kamke (GER) | Groin - WD from Rome Ch Singles Q | |
| 2021-04-26 | Richard Gasquet (FRA) | Left Leg - W/O from Estoril ATP Singles | |
| 2021-04-26 | Kei Nishikori (JPN) | Right Leg - WD from Estoril ATP Singles | |
| 2021-04-26 | Egor Gerasimov (BLR) | Headache - Ret. from Munich ATP Singles | |
| 2021-04-26 | Guido Pella (ARG) | Right Leg - Ret. from Munich ATP Singles | |
| 2021-04-26 | Yannick Hanfmann (GER) | Neck - W/O from Munich ATP Singles | |
| 2021-04-26 | Stefano Travaglia (ITA) | Right Hand - WD from Munich ATP Singles | |
| 2021-04-26 | Soon Woo Kwon (KOR) | Right Shoulder - WD from Munich ATP Singles | |
| 2021-04-26 | Aslan Karatsev (RUS) | Fatigue - WD from Munich ATP Singles | |
| 2021-04-19 | Yasutaka Uchiyama (JPN) | Low Back - Ret. from Salinas Ch Singles | |
| 2021-04-19 | Alexander Zederbauer (ECU) | Personal - WD from Salinas Ch Singles Q | |
| 2021-04-19 | Yosuke Watanuki (JPN) | Medical - W/O from Tallahassee Ch Singles | |
| 2021-04-19 | Michael Mmoh (USA) | Right Shoulder - Ret. from Tallahassee Ch Singles | |
| 2021-04-19 | Matthew Ebden (AUS) | Right Leg Strain - WD from Tallahassee Ch Singles | |
| 2021-04-19 | Aleksandar Vukic (AUS) | Right Foot - Ret. from Rome Ch Singles | |
| 2021-04-19 | Marco Trungelliti (ARG) | Right Ankle - Ret. from Rome Ch Singles Q | |
| 2021-04-19 | Anna Blinkova (RUS) | Right Hand Injury - WD from Stuttgart WTA Singles | |
| 2021-04-19 | Kiki Bertens (NED) | Left Achilles - WD from Stuttgart WTA Singles | |
| 2021-04-19 | Fiona Ferro (FRA) | Abdominal - Ret. from Istanbul WTA Singles | |
| 2021-04-19 | Marton Fucsovics (HUN) | Right Knee - WD from Belgrade ATP Singles | |
| 2021-04-19 | Emil Ruusuvuori (FIN) | Right Elbow Strain - WD from Belgrade ATP Singles | |
| 2021-04-19 | Pablo Cuevas (URU) | Adductor strain - WD from Belgrade ATP Singles | |
| 2021-04-19 | Damir Dzumhur (BIH) | Left Ankle - Ret from Belgrade ATP Singles Q | |
| 2021-04-19 | David Goffin (BEL) | Groin - Ret from Barcelona ATP Singles | |
| 2021-04-19 | Casper Ruud (NOR) | Right Arm - WD from Barcelona ATP Singles | |
| 2021-04-19 | Pedro Martinez (ESP) | Illness - WD from Barcelona ATP Singles Q | |
| 2021-04-12 | Clara Tauson (DEN) | Left knee injury - Ret. from Charleston WTA Singles | |
| 2021-04-12 | Alize Cornet (FRA) | Right thigh injury - Ret. from Charleston WTA Singles | |
| 2021-04-12 | Tereza Martincova (CZE) | Right lower leg injury - Ret. from Charleston WTA Singles | |
| 2021-04-12 | Misaki Doi (JPN) | Muscle cramping - Ret. from Charleston WTA Singles | |
| 2021-04-12 | Hailey Baptiste (USA) | Dizziness - WD from Charleston WTA Singles Q | |
| 2021-04-12 | Pedro Sakamoto (BRA) | Back - WD from Orlando Ch Singles Q | |
| 2021-04-12 | Brayden Schnur (CAN) | Fatigue - Ret. from Orlando Ch Singles | |
| 2021-04-12 | Ulises Blanch (USA) | Hip - WD from Orlando Ch Singles | |
| 2021-04-12 | Quentin Halys (FRA) | Hip - Ret. from Split Ch Singles | |
| 2021-04-12 | Blaz Kavcic (SLO) | Left Thigh - WD from Split Ch Singles | |
| 2021-04-12 | Julian Lenz (GER) | Left Adductor - Ret. from Split Ch Singles Q | |
| 2021-04-12 | Nikoloz Basilashvili (GEO) | Left Wrist - Ret. from Monte Carlo TMS Singles | |
| 2021-04-12 | Alejandro Davidovich Fokina (ESP) | Left Thigh Strain - Ret. from Monte Carlo TMS Singles | |
| 2021-04-12 | Gael Monfils (FRA) | Calf - WD from Monte Carlo TMS Singles | |
| 2021-04-12 | Daniil Medvedev (RUS) | Covid-19 - WD from Monte Carlo TMS Singles | |
| 2021-04-05 | Alessandro Giannessi (ITA) | Lower Back - Ret. from Marbella ATP Singes Q | |
| 2021-04-05 | Cedrik-Marcel Stebe (GER) | Abdominal Strain - Ret. from Cagliari ATP Singes Q | |
| 2021-04-05 | Kristina Kucova (SVK) | Right thigh injury - Ret. from Charleston WTA Singes Q | |
| 2021-04-05 | Garbine Muguruza (ESP) | Left thigh injury - Ret. from Charleston WTA Singes | |
| 2021-04-05 | Elena Rybakina (KAZ) | GI Illness - Ret. from Charleston WTA Singes | |
| 2021-04-05 | Marketa Vondrousova (CZE) | Illness - WD from Charleston WTA Singes | |
| 2021-04-05 | Camila Giorgi (ITA) | Illness - WD from Charleston WTA Singes | |
| 2021-04-05 | Andrea Petkovic (GER) | Low back injury - WD from Charleston WTA Singes | |
| 2021-04-05 | Dimitar Kuzmanov (BUL) | Right Elbow - W/O from Oeiras Ch Singes | |
| 2021-04-05 | Mats Moraing (GER) | Right Shoulder - Ret. from Oeiras Ch Singes | |
| 2021-04-05 | Harry Bourchier (AUS) | Low back - Ret. from Oeiras Ch Singes | |
| 2021-04-05 | Goncalo Oliveira (POR) | Low back - Ret. from Oeiras Ch Singes | |
| 2021-04-05 | Alexey Vatutin (RUS) | Right ankle - Ret. from Oeiras Ch Singes Q | |
| 2021-04-05 | Filip Cristian Jianu (ROU) | Cramps - Ret. from Oeiras Ch Singes Q | |
| 2021-04-05 | Pedro Sousa (POR) | Tendinitis - Ret. from Split Ch Singes | |
| 2021-04-05 | Akira Santillan (AUS) | Headache - Ret. from Split Ch Singes | |
| 2021-04-05 | Kiki Bertens (NED) | Left achilles - WD from Charleston WTA Singes | |
| 2021-03-29 | Geoffrey Blancaneaux (FRA) | Medical - WD from Oeiras Ch Singes | |
| 2021-03-29 | Ramkumar Ramanathan (IND) | Medical - WD from Oeiras Ch Singes | |
| 2021-03-22 | Nina Stojanovic (SRB) | Right Thigh - W/O from Miami WTA Singes | |
| 2021-03-22 | Bianca Andreescu (CAN) | Right Foot - Ret. from Miami WTA Singes | |
| 2021-03-22 | Elliot Benchetrit (MAR) | Non-Medical - WD from Zadar Ch Singes | |
| 2021-03-22 | Duje Ajdukovic (CRO) | Illness - WD from Zadar Ch Singes | |
| 2021-03-22 | Nerman Fatic (BIH) | Left Leg Pain - Ret. from Zadar Ch Singes | |
| 2021-03-22 | Lucas Miedler (AUT) | Left Hip - Ret. from Lugano Ch Singes | |
| 2021-03-22 | Borna Gojo (CRO) | Back - WD from Lugano Ch Singes | |
| 2021-03-22 | Yannick Maden (GER) | Left Leg - WD from Lugano Ch Singes | |
| 2021-03-22 | Simona Halep (ROU) | Right Shoulder - W/O from Miami WTA Singes | |
| 2021-03-22 | Laura Siegemund (GER) | Right Knee Injury - W/O from Miami WTA Singes | |
| 2021-03-22 | Jil Teichmann (SUI) | Left Thigh - Ret. from Miami WTA Singes | |
| 2021-03-22 | Alison Riske (USA) | Left Foot - WD from Miami WTA Singes | |
| 2021-03-22 | Viktoria Kuzmova (SVK) | Right Foot - Ret. from Miami WTA Singles Q | |
| 2021-03-22 | Monica Niculescu (ROU) | Left Thigh - Ret. from Miami WTA Singles Q | |
| 2021-03-22 | Pedro Martinez (ESP) | Abdominal injury - Ret. from Miami TMS Singes | |
| 2021-03-22 | Jack Draper (GBR) | Low back pain - Ret. from Miami TMS Singes | |
| 2021-03-22 | Lloyd George Harris (RSA) | Right wrist pain - W/O from Miami TMS Singes | |
| 2021-03-22 | Andy Murray (GBR) | Left Groin Injury - WD from Miami TMS Singes | |
| 2021-03-22 | Thiago Monteiro (BRA) | Left Arm Injury - WD from Miami TMS Singes | |
| 2021-03-22 | Daniel Altmaier (GER) | Right shoulder - Ret. from Miami TMS Singles Q | |
| 2021-03-22 | Andrea Arnaboldi (ITA) | Left Shoulder - Ret. from Lille Ch Singes | |
| 2021-03-22 | Jules Okala (FRA) | Psoas - Ret. from Lille Ch Singles Q | |
| 2021-03-22 | Constant Lestienne (FRA) | Left Knee - WD from Lille Ch Singles | |
| 2021-03-15 | Margarita Gasparyan (RUS) | Lower Back - Ret. from St. Petersburg WTA Singles | |
| 2021-03-15 | Felipe Meligeni Rodrigues Alves (BRA) | Not Specified - Ret. from Santiago Ch Singles | |
| 2021-03-15 | Facundo Bagnis (ARG) | Adductor - WD from Santiago Ch Singles | |
| 2021-03-15 | Thiago Agustin Tirante (ARG) | Medical - W/O from Santiago Ch Singles Q | |
| 2021-03-15 | Nikolas Sanchez Izquierdo (ESP) | Medical - WD from Cleveland Ch Singles | |
| 2021-03-15 | Alexis Galarneau (CAN) | Pec Strain - Ret. from Cleveland Ch Singles | |
| 2021-03-15 | Ante Pavic (CRO) | Abdominal Strain - Ret. from Cleveland Ch Singles Q | |
| 2021-03-15 | Liam Broady (GBR) | Right Foot - WD from Biella Ch Singles | |
| 2021-03-15 | Arthur Rinderknech (FRA) | Left Knee - WD from Biella Ch Singles | |
| 2021-03-15 | Sebastian Ofner (AUT) | Right Shoulder - Ret. from Biella Ch Singles | |
| 2021-03-15 | Fabrizio Ornago (ITA) | Left Hip - Ret. from Biella Ch Singles Q | |
| 2021-03-15 | Vera Lapko (BLR) | Cramping - Ret. from St. Petersburg WTA Singles | |
| 2021-03-15 | Kaja Juvan (SLO) | Covid - W/O from Monterrey WTA Singles | |
| 2021-03-15 | Casper Ruud (NOR) | Wrist Injury - W/O from Acapulco ATP Singles | |
| 2021-03-15 | Kevin Anderson (RSA) | Hip Pain - WD from Acapulco ATP Singles | |
| 2021-03-15 | Adrian Mannarino (FRA) | Stomach Pain - Ret. from Acapulco ATP Singles | |
| 2021-03-15 | Botic Van de Zandschulp (NED) | Right Shoulder - Ret. from Acapulco ATP Singles Q | |
| 2021-03-15 | Nicolas Mahut (FRA) | Illness - Ret. from Acapulco ATP Singles Q | |
| 2021-03-15 | Raymond Sarmiento (USA) | Low Back Pain - Ret. from Acapulco ATP Singles Q | |
| 2021-03-15 | Jo-Wilfried Tsonga (FRA) | Tricep - Ret. from Dubai ATP Singles | |
| 2021-03-15 | Matthew Ebden (AUS) | Right Thigh - Ret. from Dubai ATP Singles | |
| 2021-03-15 | Borna Coric (CRO) | Shoulder - WD from Dubai ATP Singles | |
| 2021-03-15 | Stan Wawrinka (SUI) | Fatigue - WD from Dubai ATP Singles | |
| 2021-03-15 | Adham Hesham Gabr (EGY) | None Medical - WD from Dubai ATP Singles Q | |
| 2021-03-08 | Sadio Doumbia (FRA) | Right Foot - WD from Biella Ch Singles | |
| 2021-03-08 | Matteo Viola (ITA) | Right Knee - Ret. from Biella Ch Singles | |
| 2021-03-08 | Yoshihito Nishioka (JPN) | Illness - Ret. from Marseille ATP Singles | |
| 2021-03-08 | Steven Diez (CAN) | Left Adductor - Ret. from Marseille ATP Singles Q | |
| 2021-03-07 | Petra Kvitova (CZE) | Right Adductor - Ret. from Dubai WTA Singles | |
| 2021-03-07 | Victoria Azarenka (BLR) | Back injury - WD from Dubai WTA Singles | |
| 2021-03-07 | Paula Badosa (ESP) | Excused withdrawal - WD from Dubai WTA Singles | |
| 2021-03-07 | Fiona Ferro (FRA) | Fatigue - WD from Dubai WTA Singles | |
| 2021-03-05 | Borna Coric (CRO) | Shoulder - WD from Doha ATP Singles | |
| 2021-03-05 | Victoria Azarenka (BLR) | Back - W/O from Doha WTA Singles | |
| 2021-03-03 | Tereza Martincova (CZE) | Back - Ret. from Lyon WTA Singles | |
| 2021-03-02 | Ulises Blanch (USA) | Left Leg - Ret. from Nur-Sultan Ch Singles | |
| 2021-03-02 | Constant Lestienne (FRA) | Right Elbow - Ret. from Gran Canaria Ch Singles | |
| 2021-03-01 | Amanda Anisimova (USA) | Ankle - WD from Doha WTA Singles | |
| 2021-03-01 | Alexandre Muller (FRA) | Left Knee - Ret. from Nur-Sultan Ch Singles | |
| 2021-03-01 | Maximilian Marterer (GER) | Not Specified - WD from Nur-Sultan Ch Singles | |
| 2021-03-01 | Jurij Rodionov (AUT) | Not Specified - WD from Nur-Sultan Ch Singles | |
| 2021-03-01 | Danilo Petrovic (SRB) | Right Shoulder - Ret. from Gran Canaria Ch Singles | |
| 2021-03-01 | Stefano Napolitano (ITA) | Right Elbow - WD from Gran Canaria Ch Singles | |
| 2021-02-28 | Sebastian Baez (ARG) | Cramping - Ret. from Buenos Aires ATP Singles Q | |
| 2021-02-28 | Aleksandre Metreveli (GEO) | Right Elbow - Ret. from Nur-Sultan Ch Singles Q | |
| 2021-02-28 | Rafael Nadal (ESP) | Back - WD from Rotterdam ATP Singles | |
| 2021-02-27 | Hugo Dellien (BOL) | Left Wrist - Ret. from Buenos Aires ATP Singles Q | |
| 2021-02-27 | Daniel Elahi Galan (COL) | Right Wrist - W/O from Buenos Aires ATP Singles Q | |
| 2021-02-25 | Danielle Collins (USA) | Back Injury - Ret. from Adelaide WTA Singles | |
| 2021-02-24 | Tung-Lin Wu (TPE) | Right Ankle - Ret. from Nur-Sultan Ch Singles | |
| 2021-02-23 | Carlos Taberner (ESP) | Right Ankle - Ret. from Gran Canaria Ch Singles | |
| 2021-02-22 | Guido Pella (ARG) | Illness - WD from Cordoba ATP Singles | |
| 2021-02-22 | Cedrik-Marcel Stebe (GER) | Arm - WD from Nur-Sultan Ch Singles | |
| 2021-02-22 | Julian Lenz (GER) | Medical - WD from Nur-Sultan Ch Singles | |
| 2021-02-21 | Elise Mertens (BEL) | Right Shoulder - WD from Adelaide WTA Singles |