Jannik Sinner has ended his 2026 season to undergo treatment for knee inflammation, ruling the world No. 1 out of the ATP Finals in Turin, an event he won in each of the past two years. He has not played since defending his Wimbledon title in July.
The announcement arrived as a video message rather than a match result. On Tuesday, Sinner said he and his doctors had decided he needs a course of treatment for his knee, which means the 2026 season is “officially over”. His management confirmed that the problem is knee inflammation.
A season that stopped in July
Sinner’s last appearance on court was the Wimbledon final on 12 July, where he came from a set down to beat Alexander Zverev and retain his title, as SportsNewz reported at the time. Nothing has followed. Before the knee intervened, he had collected six titles in 2026, Wimbledon among them.
The empty seat in Turin
The cost lands hardest at the season finale. Sinner has won the ATP Finals in Turin in each of the past two years, and he will not defend the title this time. The European indoor hard-court swing that leads into it is gone as well.
The absence also reopens the race at the top of the rankings. Zverev, the man Sinner beat at Wimbledon, sits second and is the player best placed to benefit if Sinner’s lead erodes over the coming weeks. Sinner remains world No. 1 for now, but he can no longer add points.
The road back
Sinner’s camp is looking towards 2027. The stated aim is to recover fully and return at full strength before preparations for the new season begin. No exact return date has been given, and the precise nature of the inflammation has not been detailed publicly.
For a player whose career has been built on consistency, the decision is as much about the long game as the short one. A treatment course now is the price of a healthy start to the next campaign.
