Serena Williams returns to the US Open and watches Jannik Sinner’s match at Arthur Ashe Stadium
Jannik Sinner reached the US Open fourth round for the second time in his career, and highly impressed Serena Williams through his display.

Serena Williams at the US Open (via X)
Tennis legend Serena Williams made a surprise return to the US Open on Saturday, August 31. The American returned to the Billie Jean King Tennis Center for the first time since retiring at the 2022 US Open.
Williams was seen in blue denim shorts and a jacket as she posed for the paparazzi. The 23-time singles Grand Slam champion attended Jannik Sinner‘s match against Christopher O’Connell at Arthur Ashe Stadium.
Williams has not been away from the tour since her retirement from the sport at the 2022 US Open. Recently, she was seen supporting USA athletes at the Paris Olympics.
Grigor Dimitrov initially hinted at Williams’ return to the US Open during his pre-tournament press conference. The Bulgarian mentioned Serena and Venus Williams in one of his answers and expressed hope to see them at the US Open.
Jannik Sinner destroys Christopher O’Connell to reach the US Open fourth round
Carlos Alcaraz and Novak Djokovic both faced unexpected losses in the first week of the US Open. Jannik Sinner avoided the same fate on Saturday.

The top-seeded Italian easily defeated Australian Christopher O’Connell, winning 6-1, 6-4, 6-2. This victory took him to the fourth round at Flushing Meadows for the fourth straight year. Sinner will next play against either Tommy Paul, the 14th seed, or Gabriel Diallo. At 23, Sinner has reached at least the quarter-finals in every major tournament this year and won his first Grand Slam title at the Australian Open.
While Alcaraz and Djokovic struggled in their recent matches, Sinner started strong against O’Connell. He dominated with powerful groundstrokes, hitting 46 winners with only 22 unforced errors, showing a solid baseline game. After losing his first set of the tournament to Mackenzie McDonald, Sinner has been dominant, losing only 18 games in his last nine sets.
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