Carlos Alcaraz won the Cincinnati Open title in a little more than 20 minutes on Monday after top-ranked Jannik Sinner was forced to retire because of illness during the first set.

Meeting in the final for the fourth time this year and first since Wimbledon, Sinner fell behind 5-0 in the first set with nine unforced errors. He was seen with an icepack on his head during a break and retired after playing just 22 minutes.

I’m so sorry for Jannik! Nobody likes to win because their opponent retires, especially in a final like this. Wishing you a speedy recovery! ❤️ Very happy with my week in Cincinnati and feeling ready for the US Open! 💪🏻🏆

📸 @CincyTennis pic.twitter.com/wEHPT1PBOH — Carlos Alcaraz (@carlosalcaraz) August 18, 2025

Sinner, who turned 24 on Saturday, was on 12-mat

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