World No. 1 Sinner Withdraws from Cincinnati

By Richard Pagliaro | Sunday, August 9, 2026
Photo credit: Cincinnati Open Facebook

Jannik Sinner’s North American hard-court swing shrunk again today.

World No. 1 Sinner withdrew from the Cincinnati Open today citing a right knee injury. It’s the second straight ATP Masters 1000 withdrawal for Sinner, who previously pulled out of Montreal.

“After consulting my doctors and my team, I have to announce that I am forced to withdraw from the Masters 1000 tournament in Cincinnati,” Sinner said in a statement. “My right knee was hurting and, even though we worked hard with my medical team, I have to admit that I’m not ready to play competitively yet.

“I am very disappointed that I will not be able to play in Cincinnati and wish Bob [Moran], and his entire team a great and successful tournament. I can’t wait to come back next year and I’m now focusing on my preparation for the US Open.” 

US Open main-draw action starts on Sunday, August 30th.

Sinner, who swept the 2024 Cincinnati and US Open championships in succession, is 13-1 in his last 14 Flushing Meadows matches.

The 24-year-old Italian has not played since his four-set win over Alexander Zverev in last month’s Wimbledon final as he nurses a nagging right knee issue.

Jannik Sinner has withdrawn from the Cincinnati Open due to a right knee injury.

Wishing all the best to our 2024 champion and can’t wait to see you again next year! ❤️ pic.twitter.com/wYHY94viCE

— Cincinnati Open (@CincyTennis) August 9, 2026

Sinner, the 2025 Cincinnati finalist, joins 2025 Cincinnati champion Carlos Alcaraz in pulling out of the Cincinnati Open.

Reigning US Open champion Alcaraz is continuing his recovery from a right wrist injury that has sidelined him more than 115 days, since his last match at the Barcelona Open in April.

Australian Open champion Alcaraz and Sinner, who has posted a 44-3 record this season, are both trying to give themselves maximum recovery time for what could be a physical and frenetic Flushing Meadows fortnight. New York City has been gripped by sweltering conditions this month, which will pose another physical test should the heat and humidity persist for the US Open.

The question is: Will Sinner and Alcaraz be able to post in New York City?

In October, both Sinner and Alcaraz are entered in the lucrative Six Kings Slam in Riyadh, a major payday neither champion will want to miss.