Sinner confirmed he came into the final struggling with illness and realised he could not continue after five games

Sinner retired with apparent illness in the first set of Monday's Cincinnati Open final against Alcaraz after digging a 5-0 deficit. Sinner remained on the court for the trophy ceremony and addressed his condition while speaking with the crowd. He didn't offer specifics, but said that he "didn't feel great."

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.