Sinner confirmed the news in a short video message.
“The doctors and I have decided that my knee needs a course of treatment, which means that the 2026 season is officially over,” he said. “The last few years, especially the finish in Turin, gave me so many beautiful feelings and emotions that this year will be very different.”
The announcement rules him out of Monday’s Shanghai Masters and the Nov. 15-22 ATP Finals in Turin, where he is the two-time defending champion. Siner was second in the race to Turin with 7,950 points behind Alexander Zverev (8,750).
Guilty.Think about my long career“
The exact nature of the problem has never been officially confirmed by the player or his team. In August, when he began treatment in Turin, Sky Sport Italia reported extra-articular tendinitis, which it described as the least serious type. In late September, Il Fatto Quotidiano raised the possibility of iliotibial band syndrome, but stressed that it was only a hypothesis. New reports on Sunday of a small chondral tear of the lateral femoral condyle with reactive synovitis and quadriceps impingement. According to that report, the main problem was not the pain, but how much weight the knee could bear.
Sinner said he was thinking about the long term.
“At the moment I also have to think about my long-term career, so I will do everything possible to come back 100 percent,” he said. “I will thank you in advance for your support and I hope to see you again in court very soon.”
The Italian ends the season with six titles, the most on the ATP Tour in 2026, ahead of Ben Shelton (four). These include the Monte-Carlo Masters, where he beat Carlos Alcaraz in the final, and Miami, where he defeated Jiri Lehecka. His 10 wins over Top 10 players leads the Tour this year, twice as many as anyone else. His season also included a semi-final at the Australian Open, which he lost to Novak Djokovic.
