Feliciano López Díaz-Guerra is a Spanish professional tennis player. He achieved his career-high singles ranking of world No. 12 in March 2015 and doubles ranking of world No. 9 in November 2016.
Benoît Paire is a French professional tennis player.
James Duckworth is an Australian professional tennis player. He has a career-high Association of Tennis Professionals (ATP) singles ranking of World No. 47 achieved on 8 November 2021 and No. 185 in doubles achieved on 10 February 2020. As a junior, Duckworth enjoyed a successful career which included winning three titles and reaching the semi-finals of the 2010 French Open. Duckworth represented Australia in tennis at the 2020 Tokyo Olympics and the 2022 ATP Cup.
Guido Pella is an Argentine professional tennis player. In August 2019, Pella reached his career best world No. 20 in singles. In July 2019, he peaked at No. 55 in doubles.
Nicholas Hilmy Kyrgios is an Australian professional tennis player. In singles, he has a career high ATP singles ranking of world No. 13, achieved on 24 October 2016. Kyrgios has won six ATP titles and has reached nine ATP finals, including a Masters 1000 final at the 2017 Cincinnati Masters. In doubles, he has a career-high ranking of world No. 29, achieved on 21 March 2022, after winning a Major doubles title at the 2022 Australian Open and later making the semifinals in Miami partnering Thanasi Kokkinakis.
Taylor Harry Fritz is an American professional tennis player. He has a career-high singles ranking of world No. 13 by the Association of Tennis Professionals (ATP), achieved on March 21, 2022, and a doubles ranking of world No. 104, achieved on July 26, 2021. He has won two ATP Tour singles titles, including a Masters 1000 title at the 2022 Indian Wells Masters.
Hubert Hurkacz is a Polish professional tennis player. He has been ranked as high as world No. 9 in singles by the Association of Tennis Professionals (ATP), which he first achieved in November 2021, making him the highest-ranked Polish man in singles history. He has won four ATP Tour singles titles, including a Masters 1000 title at the 2021 Miami Open. With the win, he became the first Pole to win an ATP Masters 1000 title. Hurkacz also has a career-high ranking of world No. 36 in doubles, which he attained in May 2022 after reaching the semifinals of the 2022 Madrid Open.
Reilly Opelka is an American professional tennis player. At 6 feet 11 inches tall, he is tied for the tallest-ever ATP-ranked player, and can serve in the low-140 mph range. He has been ranked as high as World No. 17 in singles by the ATP, which he achieved on February 28, 2022, and in doubles of world No. 89 on August 2, 2021. He has won four ATP singles titles and one doubles title. He is a junior Wimbledon champion.
Alex de Minaur is an Australian professional tennis player. He achieved a career-high ATP singles ranking of No. 15 on 28 June 2021 and a doubles ranking of No. 58 on 12 October 2020.
Lorenzo Sonego is an Italian professional tennis player. Sonego has a career high ATP singles ranking of world No. 21 achieved on 4 October 2021. He has a career high ATP doubles ranking of No. 124 achieved on 21 February 2022. Sonego made his ATP main-draw debut at the 2016 Internazionali BNL d'Italia, where he received a main-draw wildcard.
Oscar Otte is a German tennis player.
Matteo Berrettini is an Italian professional tennis player. He is ranked as world No. 8 in singles by the Association of Tennis Professionals (ATP), and has a career-high doubles ranking of world No. 105, achieved on 22 July 2019. Berrettini reached the final of the 2021 Wimbledon Championships and the semifinals of the 2019 US Open and 2022 Australian Open. He won his first ATP Tour 500 level event at the 2021 Queen's Club Championships.
Cameron Norrie is a British professional tennis player. He reached his career-high singles ranking of world No. 10 and No. 123 in doubles. He has four ATP Tour singles titles and one doubles title. Norrie has been the current British No. 1 in men's singles since 18 October 2021.
Ugo Humbert is a French professional tennis player. He has achieved a career-high ATP singles ranking of No. 25 on 21 June 2021. He also has a career-high ATP doubles ranking of No. 361 achieved on 14 October 2019.
Joana Manta is a former professional tennis player from Switzerland.
The 2021 ATP Tour was the global elite men's professional tennis circuit organised by the Association of Tennis Professionals (ATP) for the 2021 tennis season. The 2021 ATP Tour calendar comprised the Grand Slam tournaments, the ATP Finals, the ATP Tour Masters 1000, the ATP Cup, the ATP Tour 500 series and the ATP Tour 250 series. Also included in the 2021 calendar were the Davis Cup, the Summer Olympics in Tokyo, Next Gen ATP Finals, Laver Cup, none of which distributed ranking points.
Jack Alexander Draper is a British professional tennis player. He has been ranked as high as world No. 106 in singles by the Association of Tennis Professionals (ATP), which he achieved on 2 May 2022, and he also attained a career-high doubles ranking of world No. 477 on 14 February 2022.
Two-time defending champion Novak Djokovic defeated Daniil Medvedev in the final, 7–5, 6–2, 6–2 to win the men's singles tennis title at the 2021 Australian Open. It was his record-extending ninth Australian Open title and his 18th major title overall. With his fourth round win against Milos Raonic, Djokovic joined Roger Federer as only the second man with 300 or more match wins in major singles competitions.
Two-time defending champion Novak Djokovic defeated Matteo Berrettini in the final, 6–7(4–7), 6–4, 6–4, 6–3 to win the gentlemen's singles tennis title at the 2021 Wimbledon Championships. It was his sixth Wimbledon title and 20th major title overall, tying Roger Federer and Rafael Nadal's all-time record total of men's singles titles.
Leonardo Manta is an Italian-born Swiss former tennis player.
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