Carlos Alcaraz won the Cincinnati Open on Monday after Jannik Sinner was forced to retire due to illness. Alcaraz was already up big on Sinner, the World No. 1, when he had to retire. Sinner told the crowd that he hoped to play after feeling bad overnight, but he couldn't make it work.

This article was originally published on www.si.com as Carlos Alcaraz Had Classy Move After Jannik Sinner Retired in Cincinnati Open Final. The world's top two tennis players met again in the Cincinnati Open this week with No. 1 Jannik Sinner facing No. 2 Carlos Alcaraz in their fourth finals matchup of 2025.

It was only the third time the Cincinnati Open men’s final ended in a retirement, and the first since 2011 when Novak Djokovic stopped playing in the second set because of a shoulder injury.