Top ranked Jannik Sinner pulls out of US Open after suffering knee injury

Top-ranked Jannik Sinner withdrew from the U.S.

Open on Friday, unable to recover from a right knee injury that has sidelined him since winning the Wimbledon title.

Sinner beat Alexander Zverev last month for his second straight title at the All England Club, but then pulled out of the hard-court tournaments in Montreal and Cincinnati that serve as a warmup for the U.S.

Open.

The 25-year-old Italian wrote Friday that he won't be ready when the main draw begins on Aug.

30.

"Even though I have been working hard with my team and my medical staff, we have now had to make the difficult decision that I will not be able to compete at the US Open this year," Sinner wrote in a post on X.

"We have been back on court in Monte Carlo over the last couple of days and have realized that I still need more time to recover from my right knee issue.

I'm obviously very sad and disappointed, as New York has a special place in my heart.

I was very much looking forward to coming back and playing in the .