Sinner is currently the World No. 1 with a record of 31-4 with two titles (Australian Open and Wimbledon). Last year, Sinner won the 2024 US Open, marking his first-ever title in New York City.

Jannik Sinner fell ill a day before his Cincinnati Masters final against Carlos Alcaraz. And as a consequence, he withdrew from the match after trailing 0-5 in the first set.

Jannik Sinner’s US Open 2025 participation is uncertain after he retired from the Cincinnati Open final due to illness. While coach Darren Cahill is optimistic, concerns remain over the World No.1’s fitness following flu-like symptoms and fever.

As expected, Jannik has decided to skip the mixed doubles tournament and is recharging his batteries before starting to practice in the Big Apple. Meanwhile, the defending champion was spotted walking in Manhattan with his fitness coach Umberto Ferrara and his sparring partner Inserra.

Look, we’ve all been there—you’re having what should be the match of your dreams, and suddenly your body decides to stage a full-blown revolt. But when you’re Jannik Sinner, the world’s number one tennis player,