Chaos in Cincinnati: Jannik Sinner will not participate due to a knee problem

Jose Morón - 9 Aug 2026 | 17:51
ATP Jannik Sinner US Open 2026 ATP Cincinnati 2026

The world number 1 will not participate in the M1000 in Cincinnati, and like Alcaraz, will have to go to the US Open without prior tournaments.

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Sinner will not be in Cincinnati 2026.

Throughout this week, at Punto de Break we have been updating you on the situation of Jannik Sinner, as since last Sunday it had been reported in Italy that there was something not quite right with his right knee and there were doubts about his participation in the M1000 in Cincinnati. Today the rumor has become reality. Jannik will not compete in this tournament and will arrive at the US Open without any prior tournaments.

The news broke last Monday when Italian journalist Simone Parpiglia reported that Sinner had urgently gone to Monaco to be treated by his trusted physiotherapist for a knee problem. Some Italian media downplayed the situation, saying it was just a routine check-up before traveling to New York, but as the days went by, it became clear that the problem was real and that his presence in Cincinnati was at risk.

This past Saturday, the rumor turned out to be true. There were already doubts regarding Jannik and his team about his participation in Cincinnati. It was said that during one of his training sessions last week, he felt something in his knee and that prompted him to ask his trusted physiotherapist to cancel his vacation to see him. There was urgency, and so it was. Although it was reported that it was nothing serious, it was important enough for Sinner to seriously consider whether to attend Cincinnati.

 

 

Sinner does not want to take risks heading into the US Open

Jannik and his team's uncertainty was about what decision to make. The world number 1 had to choose whether to go to Cincinnati and risk worsening the knee problem, travel to the US but only for training, or wait a few more days, stay at home, and fly to New York later. Ultimately, as has been revealed today, Sinner has decided not to go to Cincinnati and to continue treatment in Italy for a few more days, focusing entirely on that.

This way, the tournament will suffer a severe blow as it will not feature the presence of either Alcaraz or Sinner, the two finalists from last year. This will be the first time that neither Sinner nor Alcaraz participate in the two summer M1000 events leading up to the US Open. If they want to compete in New York, as nothing can be taken for granted anymore, they will have to do so without playing any previous tournaments.

Without knowing exactly what the specific problem with Jannik's knee is, we will have to wait for the coming days to see how Sinner progresses on this front, as the last Grand Slam of the season begins in just three weeks, leaving little room for any physical setbacks.

Sinner speaks out after withdrawing from Cincinnati

"After consulting with my doctors and my team, I have to announce that I must withdraw from the Masters 1000 in Cincinnati. My right knee has been giving me problems and, although we have been working hard with my medical team, I have to accept that I am still not ready to compete. I am very disappointed about not being able to play in Cincinnati and I wish Bob [Moran] and his entire team a great tournament and much success. I look forward to returning next year and I am now focused on getting ready for the US Open."

This is an automatic translation. You can read the original news, Caos en Cincinnati: Jannik Sinner no participará por un problema en la rodilla