World number one tennis player Jannik Sinner withdrew from the Cincinnati Open due to a right knee injury, dealing a significant setback to his preparations for the upcoming US Open title defense, according to tournament organizers and a statement released on August 9, 2026. The 24-year-old Italian player’s withdrawal from the ATP Masters 1000 event follows his earlier exit from the Canadian Open, narrowing his hard-court match play ahead of the final Grand Slam of the season.
Cincinnati Open Withdrawal Details
According to an official statement released by the Cincinnati Open on August 9, 2026, Sinner decided to pull out of the tournament after consulting with his medical team and doctors. The reigning champion noted that his right knee issue requires further recovery time.
“After consulting with my doctors and my team, I have to share that I have to withdraw from the Masters 1000 tournament in Cincinnati,” Sinner said in the tournament’s announcement. “My right knee is giving me trouble and even though my medical team is working hard with me, I have to accept that I am not ready to play yet. I am very disappointed not to play in Cincinnati. I am eagerly looking forward to returning next year and am now focusing on getting ready for the US Open.”
The tournament organizers confirmed the withdrawal on social media, wishing the 2024 champion a swift recovery and noting that they look forward to his return.
Impact on the US Open Series and Field
Sinner’s absence from Cincinnati and the preceding Canadian Open deprives the 24-year-old of crucial hard-court preparation following his Wimbledon victory last month, where he captured his fifth career Grand Slam title. North American hard-court events traditionally serve as the primary springboard for players defending titles at Flushing Meadows.
The men’s singles draw at the Cincinnati Open faces further depletion with the absence of compatriot and rival Carlos Alcaraz. According to tournament reports, Alcaraz remains sidelined due to a persistent wrist injury that forced him to miss the entire clay-court swing, including the French Open, as well as the grass-court season.
Tournament Timeline
- Cincinnati Open Main Draw: Begins August 13, 2026
- US Open Main Draw: Begins August 30, 2026
With the Cincinnati Open main draw scheduled to commence on August 13, 2026, tournament organizers are adjusting seeding and match schedules. Sinner’s immediate focus shifts toward rehabilitation in time for the US Open main draw, which gets underway on August 30, 2026.