It was clear immediately that Jannik Sinner was not himself in Cincinnati.

No one will be getting an early glimpse at the men’s world No.1 singles player in Flushing this year, nor an 11-time Grand Slam doubles champion.

Jannik Sinner has been the man to watch this summer, riding a scorching win streak as he heads into the Cincinnati Open semifinals. On Saturday, he’ll face French breakout star Terence Atmane with a spot in the final — and a 26th straight hard-court victory — on the line.

Afterward, Sinner didn't have a traditional press conference. Instead, he was asked a couple of questions by the ATP media and provided answers. One of the things asked was if there was anything specific he wanted to work on going into the US Open.

Jannik Sinner during his Men’s Singles Finals match against Carlos Alcaraz at the Cincinnati Open in Mason, Ohio on Monday August 18, 2025. Sinner retired due to illness after losing five games to Alcaraz. Phil Didion/The Enquirer/Phil Didion/The ...

World no.1 Jannik Sinner reportedly wanted to partner up with the legendary Serena Williams for the revamped U.S. Open mixed doubles tournament

Cincinnati Open volunteer Phil Carver adopted the puppy that Jannik Sinner met after a match. Later, Carver got to meet Sinner at his birthday party.