Defending champions Jannik Sinner and Aryna Sabalenka, who both top the tennis rankings, led 10 former winners of the U.S. Open who were on the entry lists for this year's tournament that were announced Tuesday.

The US Open, the final tennis major of the season, will begin in August. Coco Gauff, Jannik Sinner among early favorites.

Defending champions Jannik Sinner and Aryna Sabalenka, who both top the tennis rankings, led 10 former winners of the US Open who were on the entry lists for this year's tournament that were announced Tuesday.

Sabalenka, the top seed at the Wimbledon Championships, was upset by No. 13 Amanda Anisimova in three sets on Thursday, and in the midst of their battle, Sabalenka apparently didn't love something the American pulled. In the second set, Anisimova, of the United States, celebrated a point before the ball went by Sabalenka.

Amanda Anisimova has upset No. 1-ranked Aryna Sabalenka 6-4, 4-6, 6-4 at Wimbledon and will face Iga Swiatek in the final.

Their victories at the All England Club have reopened debate in tennis and the wider sporting world about their cases. Is it valid?