_(29749594822).jpg) Novak Djokovic finished the year asworld No. 1 for a record-breaking seventh time. He won five tournaments during the season, including threemajors at theAustralian Open, theFrench Open (completing thedouble career Grand Slam), and theWimbledon Championships. He also won aMasters 1000 title and finished runner-up at the fourth major, theUS Open. | |
| Details | |
|---|---|
| Duration | 7 Jan 2021 – 5 Dec 2021 |
| Edition | 52nd |
| Tournaments | 68 |
| Categories | Grand Slam (4) Summer Olympic Games ATP Finals ATP Masters 1000 (8) ATP Cup ATP 500 (9) ATP 250 (39) Next Gen Finals Davis Cup Laver Cup |
| Achievements (singles) | |
| Most titles |  Alexander Zverev (6) |
| Most finals |  Novak Djokovic Daniil Medvedev (7) |
| Prize money leader | Novak Djokovic ($9,100,547) |
| Points leader | Novak Djokovic (9,370)[1][2] |
| Awards | |
| Player of the year | Novak Djokovic |
| Doubles team of the year |  Mate PavićNikola Mektić |
| Most improved player of the year | Aslan Karatsev |
| Newcomer of the year |  Jenson Brooksby |
| Comeback player of the year | Mackenzie McDonald |
←2020 2022 → | |
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The2021ATP Tour was the global elite men's professionaltennis circuit organised by theAssociation of Tennis Professionals (ATP) for the 2021 tennis season. The 2021 ATP Tour calendar comprised theGrand Slam tournaments (supervised by theInternational Tennis Federation (ITF)), theATP Finals, theATP Masters 1000, theATP Cup, theATP 500 series and theATP 250 series. Also included in the 2021 calendar were theDavis Cup (organised by the ITF), theSummer Olympics in Tokyo (rescheduled from2020),Next Gen ATP Finals,Laver Cup (postponed from 2020), none of which distributed ranking points.
This is the complete schedule of events on the 2021 calendar.[3][4][5]
| Grand Slam |
| ATP Finals |
| ATP Masters |
| Summer Olympics |
| ATP 500 |
| ATP 250 |
| Team events |
| Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
|---|---|---|---|---|---|
| 4 Jan 11 Jan | Delray Beach Open Delray Beach, United States ATP 250 Hard – $418,195 – 28S/16Q/16D Singles –Doubles |  Hubert Hurkacz6–3, 6–3 | Sebastian Korda | Christian Harrison Cameron Norrie |  Gianluca Mager Roberto QuirozFrances TiafoeJohn Isner |
 Ariel BeharGonzalo Escobar6–7(5–7), 7–6(7–4), [10–4] | Christian HarrisonRyan Harrison | ||||
| Antalya Open Antalya, Turkey ATP 250 Hard – €361,800 – 32S/24Q/16D Singles –Doubles |  Alex de Minaur2–0, ret. |  Alexander Bublik |  Jérémy Chardy David Goffin | Matteo BerrettiniJan-Lennard Struff Nikoloz BasilashviliStefano Travaglia | |
| Nikola MektićMate Pavić 6–2, 6–4 | Ivan Dodig Filip Polášek |
TheCOVID-19 pandemic affected tournaments on both the ATP and WTA tours. The following tournaments were cancelled or postponed due to the COVID-19 pandemic.
| Week of | Tournament | Status |
|---|---|---|
| 4 Jan | ATP Cup Brisbane,Perth,Sydney, Australia Hard – 24 teams | Postponed to 1 February, reduced to 12 teams, and moved to Melbourne[4] |
| Qatar Open Doha, Qatar ATP 250 Hard | Postponed to 8 March[4] | |
| 11 Jan | Auckland Open Auckland, New Zealand ATP 250 Hard | Cancelled[9] |
| Adelaide International Adelaide, Australia ATP 250 Hard | Postponed to 1 February and moved to Melbourne[4] | |
| 18 Jan 25 Jan | Australian Open Melbourne, Australia Grand Slam Hard | Postponed to 8 February[4] |
| 1 Feb | Maharashtra Open Pune, India ATP 250 Hard | Cancelled[10] |
| Córdoba Open Córdoba, Argentina ATP 250 Clay | Postponed to 22 February | |
| Open Sud de France Montpellier, France | ||
| 8 Feb | Rotterdam Open Rotterdam, Netherlands ATP 500 Hard (i) | Postponed to 1 March |
| Argentina Open Buenos Aires, Argentina ATP 250 Clay | ||
| 15 Feb | Rio Open Rio de Janeiro, Brazil ATP 500 Clay (red) | Cancelled[11] |
| 8 Mar 15 Mar | Indian Wells Open Indian Wells, United States ATP Masters 1000 Hard | Postponed to 4 October[12][13] |
| 5 Apr | U.S. Men's Clay Court Championships Houston, United States ATP 250 Clay (maroon) | Cancelled |
| Grand Prix Hassan II Marrakesh, Morocco ATP 250 Clay (red) | Cancelled[14] | |
| 24 May | French Open Paris, France Grand Slam Clay (red) | Postponed to 31 May |
| 7 Jun | Rosmalen Grass Court Championships 's-Hertogenbosch, Netherlands ATP 250 Grass | Cancelled |
| 27 Sep | Chengdu Open Chengdu, China ATP 250 Hard | Cancelled[15] |
| Zhuhai Championships Zhuhai, China ATP 250 Hard | ||
| 4 Oct | China Open Beijing, China ATP 500 Hard | |
| Japan Open Tokyo, Japan ATP 500 Hard | ||
| 11 Oct | Shanghai Masters Shanghai, China ATP Masters 1000 Hard | |
| 25 Oct | Swiss Indoors Basel, Switzerland ATP 500 Hard (i) | Cancelled[16] |
These tables present the number ofsingles (S),doubles (D), andmixed doubles (X) titles won by each player and each nation during the season, within all the tournament categories of the 2021 ATP Tour: theGrand Slam tournaments, theATP Finals, theATP Masters 1000, theATP 500 series, and theATP 250 series. The players/nations are sorted by:
| Grand Slam |
| Summer Olympics |
| ATP Finals |
| ATP Masters 1000 |
| ATP 500 |
| ATP 250 |
| Total | Nation | Grand Slam | Olympic Games | ATP Finals | Masters 1000 | Tour 500 | Tour 250 | Total | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S | D | X | S | D | X | S | D | S | D | S | D | S | D | S | D | X | ||
| 14 | Great Britain (GBR) | 1 | 3 | 1 | 1 | 1 | 2 | 5 | 3 | 8 | 3 | |||||||
| 13 | Croatia (CRO) | 2 | 1 | 3 | 1 | 2 | 4 | 2 | 11 | 0 | ||||||||
| 12 | Germany (GER) | 1 | 1 | 2 | 1 | 2 | 2 | 3 | 6 | 6 | 0 | |||||||
| 12 | Italy (ITA) | 2 | 5 | 5 | 7 | 5 | 0 | |||||||||||
| 9 | United States (USA) | 1 | 1 | 1 | 3 | 3 | 3 | 5 | 1 | |||||||||
| 9 | Russia (RUS) | 1 | 1 | 1 | 2 | 3 | 1 | 7 | 1 | 1 | ||||||||
| 9 |  Spain (ESP) | 1 | 2 | 2 | 3 | 1 | 6 | 3 | 0 | |||||||||
| 9 |  Argentina (ARG) | 2 | 2 | 5 | 2 | 7 | 0 | |||||||||||
| 6 | Serbia (SRB) | 3 | 1 | 1 | 1 | 5 | 1 | 0 | ||||||||||
| 6 | France (FRA) | 1 | 1 | 1 | 1 | 2 | 1 | 5 | 0 | |||||||||
| 5 | Australia (AUS) | 1 | 3 | 1 | 3 | 2 | 0 | |||||||||||
| 5 |  Norway (NOR) | 5 | 5 | 0 | 0 | |||||||||||||
| 5 |  Brazil (BRA) | 5 | 0 | 5 | 0 | |||||||||||||
| 4 | Poland (POL) | 1 | 2 | 1 | 3 | 1 | 0 | |||||||||||
| 4 |  Mexico (MEX) | 4 | 0 | 4 | 0 | |||||||||||||
| 4 |  Netherlands (NED) | 4 | 0 | 4 | 0 | |||||||||||||
| 3 |  New Zealand (NZL) | 1 | 1 | 1 | 0 | 3 | 0 | |||||||||||
| 3 |  Colombia (COL) | 3 | 0 | 3 | 0 | |||||||||||||
| 3 |  Finland (FIN) | 3 | 0 | 3 | 0 | |||||||||||||
| 2 | Slovakia (SVK) | 1 | 1 | 0 | 2 | 0 | ||||||||||||
| 2 |  Greece (GRE) | 1 | 1 | 2 | 0 | 0 | ||||||||||||
| 2 |  South Africa (RSA) | 1 | 1 | 1 | 1 | 0 | ||||||||||||
| 2 | Georgia (GEO) | 2 | 2 | 0 | 0 | |||||||||||||
| 2 |  Belarus (BLR) | 1 | 1 | 1 | 1 | 0 | ||||||||||||
| 2 | Belgium (BEL) | 1 | 1 | 1 | 1 | 0 | ||||||||||||
| 2 | Ecuador (ECU) | 2 | 0 | 2 | 0 | |||||||||||||
| 2 |  Monaco (MON) | 2 | 0 | 2 | 0 | |||||||||||||
| 2 | Uruguay (URU) | 2 | 0 | 2 | 0 | |||||||||||||
| 1 |  Japan (JPN) | 1 | 0 | 1 | 0 | |||||||||||||
| 1 |  Romania (ROU) | 1 | 0 | 1 | 0 | |||||||||||||
| 1 |  Chile (CHI) | 1 | 1 | 0 | 0 | |||||||||||||
| 1 |  South Korea (KOR) | 1 | 1 | 0 | 0 | |||||||||||||
| 1 |  Austria (AUT) | 1 | 0 | 1 | 0 | |||||||||||||
| 1 |  Bosnia and Herzegovina (BIH) | 1 | 0 | 1 | 0 | |||||||||||||
| 1 |  El Salvador (ESA) | 1 | 0 | 1 | 0 | |||||||||||||
| 1 |  Israel (ISR) | 1 | 0 | 1 | 0 | |||||||||||||
| 1 |  Switzerland (SUI) | 1 | 0 | 1 | 0 | |||||||||||||
The following players won theirfirst main circuittitle in singles, doubles or mixed doubles:
Dan Evans (30 years, 259 days) –Melbourne 2(draw)Alexei Popyrin (21 years, 207 days) –Singapore(draw)Juan Manuel Cerúndolo (19 years, 105 days) –Córdoba(draw)Aslan Karatsev (27 years, 197 days) –Dubai(draw)Sebastian Korda (20 years, 328 days) –Parma(draw)Cameron Norrie (25 years, 335 days) –Los Cabos(draw)Carlos Alcaraz (18 years, 81 days) –Umag(draw)Ilya Ivashka (27 years, 185 days) –Winston-Salem(draw)Kwon Soon-woo (23 years, 298 days) –Nur Sultan(draw)Tommy Paul (24 years, 180 days) –Stockholm(draw)Ariel Behar –Delray Beach(draw)Gonzalo Escobar –Delray Beach(draw)Rafael Matos –Córdoba(draw)Felipe Meligeni Alves –Córdoba(draw)Tomislav Brkić –Buenos Aires(draw)Aslan Karatsev –Doha(draw)Lloyd Glasspool –Marseille(draw)Harri Heliövaara –Marseille(draw)Lorenzo Sonego –Cagliari(draw)Andrea Vavassori –Cagliari(draw)Ivan Sabanov –Belgrade(draw)Matej Sabanov –Belgrade(draw)Andrei Vasilevski –Belgrade 2(draw)Sander Arends –Båstad(draw)David Pel –Båstad(draw)William Blumberg –Newport(draw)Fernando Romboli –Umag(draw)David Vega Hernández –Umag(draw)Hans Hach Verdugo –Los Cabos(draw)Marc-Andrea Hüsler –Gstaad(draw)Dominic Stricker –Gstaad(draw)Alexander Erler –Kitzbühel(draw)Lucas Miedler –Kitzbühel(draw)Reilly Opelka –Atlanta(draw)Jannik Sinner –Atlanta(draw)Jan Zieliński –Metz(draw)Joe Salisbury –French Open(draw)Neal Skupski –Wimbledon(draw)
Andrey Rublev (ROC) –2020 Summer Olympics(draw)The following playersdefended a main circuit title in singles, doubles, or mixed doubles:
Nikola Mektić –Monte-Carlo(draw)Juan Sebastián Cabal –Barcelona(draw)Robert Farah –Barcelona(draw)Michael Venus –Hamburg(draw)Raven Klaasen –Washington(draw)The following players achieved their career high ranking in this season inside top 50 (inbold the players who entered the top 10 for the first time):
Miomir Kecmanović (reached No. 38 on March 8)Daniil Medvedev (reachedNo. 2 on March 15)Ugo Humbert (reached No. 25 on June 21)Alex de Minaur (reached No. 15 on June 28)Stefanos Tsitsipas (reachedNo. 3 on August 9)Alejandro Davidovich Fokina (reached No. 32 on August 30)Andrey Rublev (reachedNo. 5 on September 13)Matteo Berrettini (reachedNo. 7 on September 13)Cristian Garín (reached No. 17 on September 13)Reilly Opelka (reached No. 19 on September 13)Lloyd Harris (reached No. 31 on September 13)Alexander Bublik (reached No. 34 on September 13)Dan Evans (reached No. 22 on September 27)Lorenzo Sonego (reached No. 21 on October 4)Sebastian Korda (reached No. 38 on October 18)Ilya Ivashka (reached No. 43 on October 18)Casper Ruud (reachedNo. 8 on October 25)Jannik Sinner (reachedNo. 9 on November 1)Kwon Soon-woo (reached No. 52 on November 1)Hubert Hurkacz (reachedNo. 9 on November 8)Cameron Norrie (reached No. 12 on November 8)Aslan Karatsev (reached No. 15 on November 8)Taylor Fritz (reached No. 23 on November 8)Carlos Alcaraz (reached No. 32 on November 8)James Duckworth (reached No. 47 on November 8)
Félix Auger-Aliassime (reachedNo. 10 on November 15)Tommy Paul (reached No. 43 on November 15)Joran Vliegen (reached No. 28 on June 14)Philipp Oswald (reached No. 31 on June 21)Neal Skupski (reached No. 14 on August 9)Rajeev Ram (reachedNo. 4 on September 20)Matwé Middelkoop (reached No. 26 on October 4)Nikola Mektić (reachedNo. 1 on October 18)Max Purcell (reached No. 28 on October 18)Hubert Hurkacz (reached No. 44 on October 25)Luke Saville (reached No. 23 on November 8)Sander Gillé (reached No. 24 on November 8)Andrey Golubev (reached No. 25 on November 8)Marcelo Arévalo (reached No. 31 on November 8)Nikola Ćaćić (reached No. 35 on November 8)Hugo Nys (reached No. 41 on November 8)Tomislav Brkić (reached No. 46 on November 8)Alexander Bublik (reached No. 47 on November 8)Tim Pütz (reached No. 17 on November 15)Gonzalo Escobar (reached No. 38 on November 15)Ariel Behar (reached No. 41 on November 15)These are theATP rankings and yearly ATP race rankings of the top 20 singles players, doubles players and doubles teams at the current date of the 2021 season.
| Holder | Date gained | Date forfeited |
|---|---|---|
| Novak Djokovic (SRB) | Year end 2020 | Year end 2021 |
Competed at the2021 ATP Finals. |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holder | Date gained | Date forfeited |
|---|---|---|
| Robert Farah (COL) | Year end 2020 | 4 April 2021 |
| Mate Pavić (CRO) | 5 April 2021 | 17 October 2021 |
| Nikola Mektić (CRO) | 18 October 2021 | 7 November 2021 |
| Mate Pavić (CRO) | 8 November 2021 | Year end 2021 |
Points are awarded as follows:[20]
| Category | W | F | SF | QF | R16 | R32 | R64 | R128 | Q | Q3 | Q2 | Q1 |
| Grand Slam (128S) | 2000 | 1200 | 720 | 360 | 180 | 90 | 45 | 10 | 25 | 16 | 8 | 0 |
| Grand Slam (64D) | 2000 | 1200 | 720 | 360 | 180 | 90 | 0 | – | 25 | – | 0 | 0 |
| ATP Finals (8S/8D) | 1500(max) 1100(min) | 1000(max) 600(min) | 600(max) 200(min) | 200 for each round robin match win, +400 for a semifinal win, +500 for the final win. | ||||||||
| ATP Masters 1000 (96S) | 1000 | 600 | 360 | 180 | 90 | 45 | 25 | 10 | 16 | – | 8 | 0 |
| ATP Masters 1000 (56S/48S) | 1000 | 600 | 360 | 180 | 90 | 45 | 10 | – | 25 | – | 16 | 0 |
| ATP Masters 1000 (32D) | 1000 | 600 | 360 | 180 | 90 | 0 | – | – | – | – | – | – |
| Summer Olympics (64S) | – | – | – | – | – | – | – | – | – | – | – | – |
| ATP 500 (48S) | 500 | 300 | 180 | 90 | 45 | 20 | 0 | – | 10 | – | 4 | 0 |
| ATP 500 (32S) | 500 | 300 | 180 | 90 | 45 | 0 | – | – | 20 | – | 10 | 0 |
| ATP 500 (16D) | 500 | 300 | 180 | 90 | 0 | – | – | – | 45 | – | 25 | 0 |
| ATP 250 (56S/48S) | 250 | 150 | 90 | 45 | 20 | 10 | 0 | – | 5 | – | 3 | 0 |
| ATP 250 (32S/28S) | 250 | 150 | 90 | 45 | 20 | 0 | – | – | 12 | – | 6 | 0 |
| ATP 250 (16D) | 250 | 150 | 90 | 45 | 0 | – | – | – | – | – | – | – |
| ATP Cup | S 500(max)D 250(max) | For details, see2021 ATP Cup | ||||||||||
| Prize money in US$ as of 22 November 2021[update][21] | ||||
|---|---|---|---|---|
| # | Player | Singles | Doubles | Year-to-date |
| 1 | Novak Djokovic (SRB) | $9,069,225 | $31,322 | $9,100,547 |
| 2 | Daniil Medvedev (RUS) | $7,466,284 | $14,987 | $7,481,271 |
| 3 | Alexander Zverev (GER) | $6,361,173 | $59,171 | $6,420,344 |
| 4 | Stefanos Tsitsipas (GRE) | $3,503,608 | $75,547 | $3,579,155 |
| 5 | Andrey Rublev (RUS) | $3,131,467 | $199,911 | $3,331,378 |
| 6 | Matteo Berrettini (ITA) | $3,201,126 | $30,782 | $3,231,908 |
| 7 | Cameron Norrie (GBR) | $2,518,782 | $105,099 | $2,623,881 |
| 8 | Casper Ruud (NOR) | $2,230,592 | $84,037 | $2,314,629 |
| 9 | Hubert Hurkacz (POL) | $2,173,247 | $140,042 | $2,313,289 |
| 10 | Jannik Sinner (ITA) | $2,159,534 | $73,665 | $2,233,199 |
| Event | Round | Surface | Winner | Opponent | Result[22] | |
|---|---|---|---|---|---|---|
| 1. | French Open | SF | Clay | Novak Djokovic | Rafael Nadal | 3–6, 6–3, 7–6(7–4), 6–2 |
| 2. | US Open | SF | Hard | Novak Djokovic | Alexander Zverev | 4–6, 6–2, 6–4, 4–6, 6–2 |
| 3. | US Open | R3 | Hard | Frances Tiafoe | Andrey Rublev | 4–6, 6–3, 7–6(8–6), 4–6, 6–1 |
| 4. | Australian Open | R2 | Hard | Stefanos Tsitsipas | Thanasi Kokkinakis | 6–7(5–7), 6–4, 6–1, 6–7(5–7), 6–4 |
| 5. | Wimbledon | R2 | Grass | Andy Murray | Oscar Otte | 6–3, 4–6, 4–6, 6–4, 6–2 |
| Event | Round | Surface | Winner | Opponent | Result[23] | |
|---|---|---|---|---|---|---|
| 1. | Barcelona Open | F | Clay | Rafael Nadal | Stefanos Tsitsipas | 6–4, 6–7(6–8), 7–5 |
| 2. | ATP Finals | RR | Hard (i) | Daniil Medvedev | Alexander Zverev | 6–3, 6–7(3–7), 7–6(8–6) |
| 3. | European Open | R1 | Hard (i) | Andy Murray | Frances Tiafoe | 7–6(7–2), 6–7(7–9), 7–6(10–8) |
| 4. | Serbia Open | SF | Clay | Aslan Karatsev | Novak Djokovic | 7–5, 4–6, 6–4 |
| 5. | Paris Masters | F | Hard (i) | Novak Djokovic | Daniil Medvedev | 4–6, 6–3, 6–3 |
The following is a list of notable players (winners of a main tour title, and/or part of the ATP rankings top 100 in singles, or top 100 in doubles, for at least one week) who announced their retirement from professional tennis, became inactive (after not playing for more than 52 weeks), or were permanently banned from playing, during the 2021 season:
Alexandr Dolgopolov(born 7 November 1988 inKyiv, Ukraine) joined the professional tour in 2006 and reached a career-high ranking of No. 13 in singles and No. 42 in doubles, both in January 2012. He won three titles in singles and one title in doubles, as well as reaching oneGrand Slam quarterfinal in singles. Having been inactive since his wrist injury in 2018 including his attempted comeback which was slated in 2020, Dolgopolov announced his retirement from theATP Tour in May 2021.[24]Jared Donaldson(born 9 October 1996 inProvidence, United States) joined the professional tour in 2014 and with a career-high ranking of No. 48 in singles in March 2018. He announced his retirement in December 2021 due to surgeries in the last two years and decided to start his collegiate education.[25]Guillermo García López(born 4 June 1983 inLa Roda, Spain) joined the professional tour in 2002 and reached a career-high ranking of No. 23 in singles in February 2011 and No. 27 in doubles in May 2017. He won five titles in singles and played for theSpanish Davis Cup team. In doubles, he won three titles, reached the final of the2016 US Open and the semifinals of the2017 Australian Open. In January 2021, he announced that he would retire after the 2021 season.[26]Martin Kližan(born 11 July 1989 inBratislava, Czechoslovakia (now Slovakia)) joined the professional tour in 2007 and reached a career-high ranking of No. 24 in singles in April 2015 and No. 73 in doubles in May 2015. He won six titles in singles and four titles in doubles. He also won the2006 Junior French Open and achieved world No. 1 on the junior circuit in January 2007. He won two of his titles atATP 500 level (Rotterdam 2016 andHamburg 2016) and recorded four victories over top-10 players with his most notable being againstRafael Nadal atBeijing 2014 who was ranked No. 2 in the world at the time. He played his last match at2021 Wimbledon qualifying where he lost in the first round toZdeněk Kolář.[27][28] He announced his retirement in August.[29]Julian Knowle(born 29 April 1974 inLauterach, Austria), former World No. 6 in doubles, won 19 doubles titles.[30]
Robert Lindstedt(born 19 March 1977 inSundbyberg, Sweden), former World No. 3 in doubles, won 23 doubles titles. His last ATP tournament in his career was the2021 Stockholm Open.[31]Paolo Lorenzi(born 15 December 1981 in Rome, Italy) joined the professional tour in 1999 and reached a career-high ranking of No. 33 in singles in May 2017 and No. 82 in doubles in January 2018. He won one title in singles and one in doubles. He won 21ATP Challenger Tour titles (third in the all-time leaderboard). He was part of theItalian Davis Cup team. Lorenzi announced the2021 US Open would be his last professional tournament, and he lost toMaxime Janvier in the second qualifying round.[32]
Lu Yen-hsun(born 14 August 1983 inTaipei, Taiwan) joined the professional tour in 2001 and reached a career-high ranking of No. 33 in singles in November 2010 and No. 86 in doubles in January 2005. In singles, he won 29 challenger titles, the most anyone has won, and reached the Quarterfinals in the2010 Wimbledon Championships. Lu announced in June that Wimbledon and the Tokyo Olympics would be his last tournaments on the tour.[33]Leonardo Mayer(born 15 May 1987 inCorrientes, Argentina]) joined the professional tour in 2003 and reached a career-high ranking of No. 21 in singles in June 2015 and No. 48 in doubles in January 2019. He won two titles in singles, both times at theGerman Open. Mayer retired from tennis in October 2021.[34]Jürgen Melzer(born 22 May 1981 inDeutsch-Wagram, Austria) joined the professional tour in 1999 and reached a career-high ranking of No. 8 in singles in April 2011 and No. 6 in doubles in November 2010. He won five titles in singles and reached the semifinals of the2010 French Open. In doubles, he won 17 titles, including the2010 Wimbledon Championships and the2011 US Open. Melzer retired from singles in October 2018, but continued to play doubles competitions on the ATP Tour afterwards. In October 2020, he announced that the2021 Australian Open would be his last professional tournament.[35] However, he did not play theAustralian Open due to the COVID-19 quarantine measures and instead played at theFrench Open,Wimbledon and theUS Open. He played his final tournament on the ATP Tour at theVienna Open, where he partneredAlexander Zverev.[36][37]Viktor Troicki(born 10 February 1986 inBelgrade,SR Serbia,Yugoslavia (now Serbia)) joined the professional tour in 2006 and reached a career-high ranking of 12 in singles in June 2011 and 49 in doubles in October 2010. He won three titles in singles and 2 in doubles. In team competitions, he was part of theSerbia Davis Cup team who won theDavis Cup in 2010, as well as part of the Serbian team who won the inauguralATP Cup in 2020. Troicki announced on 17 June 2021 that Wimbledon would be his last professional tournament.[38]Luca Vanni(born 4 June 1985 inCastel del Piano, Italy) joined the professional tour in 2006 and reached a career-high ranking of No. 100 in singles in May 2015.[39]The following is a list of notable players (winners of a main tour title, and/or part of the ATP rankings top 100 in singles, or top 100 in doubles, for at least one week) who returned from retirement during the 2021 season:
