Defending champions Aryna Sabalenka and Jannik Sinner are the players to beat as the U.S. Open singles competition is set to begin on Monday.

Sinner is currently the World No. 1 with a record of 31-4 with two titles (Australian Open and Wimbledon). Last year, Sinner won the 2024 US Open, marking his first-ever title in New York City.

Carlos Alcaraz and Novak Djokovic will face potential difficult American opponents when they begin their quest for another U.S. Open title.

The 2025 US Open Tennis Championships is live from Queens, New York, as the top players from the men's and women's divisions compete for a Grand Slam title.

Here's what to know about the 2025 U.S. Open Tennis Championships at the Billie Jean King National Tennis Center in Flushing, New York.

The 24-year-old from Poland who already owns six major titles — and needs only an Australian Open trophy to complete a career Grand Slam — has returned to her elite status, not to mention returned to No. 2 in the rankings, behind only Aryna Sabalenka and ahead of Coco Gauff.

American tennis star Jessica Pegula talks to CNN Sports about playing at the US Open and being cheered on at Arthur Ashe Stadium.