RONNIE O’SULLIVAN will not play in next week’s British Open for medical reasons.

The 49-year-old was set to play Sanderson Lam in next Monday’s opening round but his withdrawal was announced by the World Snooker Tour (WST) on Tuesday.

O’Sullivan has not played since the Saudi Arabia Masters in mid-August and is also absent for this week’s English Open.

A WST statement read: “Ronnie O’Sullivan has pulled out of next week’s Unibet British Open for medical reasons.

“O’Sullivan was due to face Sanderson Lam in the opening round on Monday September 22 at 7pm. He has been replaced in the draw by the highest available player from the 2025 Q School ranking list, Daniel Womersley.

“The tournament at Cheltenham Racecourse runs from September 22-28.”

The exact nature of the medical condition is not clear.

O’Sullivan posted a video of himself going through some strenuous exercises on Monday, with the Instagram caption reading: “Exercise is so important to me. Not just for the body, but for my mindset too.”