ATP Brief: August 21, 2026
Sinner Withdraws from US Open as Alcaraz Confirms Return
The US Open lost its World No. 1 on Friday as Jannik Sinner withdrew from the season's final Grand Slam because of a persistent right knee injury. Sinner has not competed since winning Wimbledon in July and had already pulled out of the Canadian Open and Cincinnati as he attempted to recover in time for New York.
The Italian said he needs additional time to recover, removing one of the leading contenders from a tournament that begins August 30. His withdrawal comes just as Carlos Alcaraz confirmed that he will make his own long-awaited return at Flushing Meadows.
Alcaraz has not played competitively since April because of a right wrist injury that forced him to miss both Roland Garros and Wimbledon, as well as the North American Masters events in Canada and Cincinnati. The 23-year-old Spaniard will return as the defending US Open champion after defeating Sinner in last year's final.
Alcaraz began the season by winning the Australian Open and completing the career Grand Slam, but his wrist injury has limited him to only a portion of the 2026 season. With Sinner now out, the World No. 2 becomes the highest-ranked player in the US Open men's field.
Fils and Cobolli Book Cincinnati Semifinal Showdown
Arthur Fils continued his outstanding Masters 1000 season with a commanding 6-3, 6-2 victory over Thiago Agustin Tirante, reaching his third Masters semifinal of 2026.
The 22-year-old Frenchman needed just 64 minutes to end Tirante's breakthrough run, during which the Argentine had defeated Novak Djokovic, Martin Landaluce and Jakub Mensik. Fils did not face a break point in the quarterfinal and became the first Frenchman since Guy Forget in 1991 to reach three Masters 1000 semifinals in the same season.
Fils will face Flavio Cobolli, who rallied from a set down to defeat Tommy Paul 2-6, 6-3, 6-4. The victory sends the Italian into the first Masters 1000 semifinal of his career and guarantees Cincinnati a first-time Masters finalist.
The remaining two quarterfinals will be played Friday. Taylor Fritz faces fellow American Brandon Nakashima, who is attempting to follow his run to the Montreal final with another deep Masters performance. Lorenzo Musetti meets Frances Tiafoe in the other quarterfinal, with the winners advancing to face each other in the semifinals.
US Open Announces Record $108 Million Prize Pool
The US Open will offer a record $108 million in prize money this year, a 20 percent increase from 2025 and the largest purse in tennis history. The men's and women's singles champions will each receive $5.5 million, while players eliminated in the first round will earn $140,000.
The increase follows sustained pressure from leading players for a larger share of Grand Slam revenues. Tournament organizers have also committed $2 million to a new player support program, while the four majors have agreed to establish a joint Player Advisory Council as discussions over prize money, representation and player welfare continue.
Sources: Al Jazeera · ATP Tour · Tennis Majors · Reuters