Ronnie O’Sullivan has withdrawn from the upcoming Masters tournament at Alexandra Palace at short notice “on medical grounds”.

The Rocket has pulled out of his attempt to secure a ninth Masters crown at the 11th hour with organisers citing 'health issues'

The seven-time world champion has made a last-minute decision to pull out of this year's Masters, a day after whacking his cue on the table in frustration during a defeat to Rob Milkins.

Ronnie O'Sullivan had been due to begin the defence of his Masters title on Sunday against John Higgins but has been replaced in the draw by Neil Robertson

A statement from the World Snooker Tour read: “Neil Robertson has replaced Ronnie O’Sullivan in the draw for the upcoming Johnstone’s Paint Masters. Last year’s champion O’Sullivan was due to face John Higgins in the opening match on Sunday afternoon, but has withdrawn on medical grounds.”

Ronnie O'Sullivan has withdrawn from The Masters because of medical reasons. The defending champion had been due to face John Higgins on Sunday afternoon, but now won't compete at the event in London. Neil Robertson has been named as The Rocket's replacement and will feature in the tournament's opening match against Higgins.

Defending champion Ronnie O'Sullivan has withdrawn from the Masters on medical grounds. O'Sullivan, 49, was aiming to win a record-extending ninth title, and had been set to face John Higgins in a blockbuster opening to the tournament at Alexandra Palace on Sunday.

Masters has been dealt a huge blow with defending champion Ronnie O'Sullivan withdrawing from the tournament. The World Snooker Tour confirmed O'Sullivan's withdrawal on Friday morning, announcing Neil Roberston would be replacing him.

Ronnie O’Sullivan has withdrawn from the Masters and will not defend his title at Alexandra Palace this month. World Snooker Tour confirmed on Friday morning that the Rocket has withdrawn ‘on medical grounds’ and will be replaced in the draw by Neil Robertson.