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.

The Cincinnati Open men's final Aug. 18 will feature the fourth championship meeting this year between top players Jannik Sinner and Carlos Alcaraz.

Alexander Zverev has won 16 of his last 18 matches in Cincinnati, which included a run to the title in 2021. But his two defeats during that run have both come in the final four, losing to eventual ch