Overview
- Sinner confirmed he will not play the US Open because of inflammation in his right knee, a problem that forced earlier withdrawals from Montreal and Cincinnati.
- On Thursday he posted on Instagram that missing New York was painful and that he is focusing on recovery while wishing fellow players well.
- Sinner is receiving treatment at J Medical in Turin and tournament director Lars Graff said recovery appears to be progressing, though doctors will clear any return to play.
- He is listed on the entry list for the ATP 500 in Beijing (Sept. 30–Oct. 6) and is expected to use that tournament to restart his season ahead of Shanghai, Vienna, Paris and the ATP Finals.
- Missing the US Open stopped Sinner from defending his 2025 US Open final and from chasing a second major in 2026 after his Wimbledon win, which could reshape late‑season title defenses and preparations for the year‑end race.