Ronnie O’Sullivan has withdrawn from the Masters and will not defend his title at Alexandra Palace this month. World Snooker Tour confirmed on Friday morning that the Rocket has withdrawn ‘on medical grounds’ and will be replaced in the draw by Neil Robertson.

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 Last year’s champion O’Sullivan was due to face John Higgins in the opening match on Sunday afternoon, but has withdrawn on medical grounds.”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 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

Reigning champion Ronnie O’Sullivan has withdrawn from the upcoming Johnstone’s Paint Masters on medical grounds. The world number three, who was won the competition eight times, was due to face John Higgins in the opening match on Sunday afternoon.

Ronnie O'Sullivan withdraws from Masters defence on 'medical grounds' as Neil Robertson takes his place - The 49-year-old withdrew from the Champions League this week after a frustrated display

Ronnie O'Sullivan has withdrawn from The Masters on medical grounds and will be replaced in the draw by Neil Robertson, with his first-round opponent John Higgins now facing the Australian

Defending champion Ronnie O'Sullivan has withdrawn from the Masters on medical grounds.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.

Ronnie O'Sullivan has been forced to withdraw from The Masters due to medical reasons, with Neil Robertson stepping in to face John Higgins in the first round

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