ATP No. 1 Jannik Sinner retired just 23 minutes into the Cincinnati Open men's singles final, allowing Carlos Alcaraz to win the Rookwood Cup.

Carlos Alcaraz won the Cincinnati Open title in anticlimactic circumstances as rival Jannik Sinner retired due to illness just 23 minutes into the match.

Carlos Alcaraz won the Cincinnati Open title in a little over 20 minutes Monday afternoon, after his nearest rival and world No. 1 Jannik Sinner retired through illness down 5-0. Sinner fought back tears as he was forced to quit the match, which was poised to be another instalment in the most compelling current rivalry in tennis.

After a rough start to the year, Świątek (+310) is now basically neck and neck odds-wise with Sabalenka (+290), who is, again, the defending US Open champion. If anyone can unseat Sabalenka, it sure feels like Świątek is the most likely to do it.

Spanish star Carlos Alcaraz has his sights set on reclaiming the ATP World No. 1 ranking from Jannik Sinner at the upcoming US Open.

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.

Nathan, a co-founder of the sports website Defector Media, has published “ Changeover: A Young Rivalry and a New Era of Men’s Tennis ” with Gallery Books. He spent the 2024 season squarely focused on Sinner and Alcaraz, in which they split the four majors and accelerated their ascension into a tennis stratosphere of their own creation.

Fierce rivals Carlos Alcaraz and Jannik Sinner square off at the men's Cincinnati Open Final today. Find out how to watch for free.

Jannik Sinner retired with an apparent illness 23 minutes into the first set of the Cincinnati Open final against Carlos Alcaraz.