Ronnie O’Sullivan limped through his World Open qualifier against Alfie Burden in Barnsley to book his place in the final stages of the tournament.

O’Sullivan, who has been given special permission by World Snooker to wear trainers due to a foot injury, kicked them off midway through the fourth frame while Burden was on a break of 61.

The world number one, who added the World Grand Prix title to his recent Masters win on Sunday, then slightly delayed the start of the fifth frame whilst he restored his footwear.

A break of 104 from Burden threatened an upset as he pulled back to 3-3, but breaks of 83 and 58 gave O’Sullivan a 5-3 lead and a place in the tournament proper in China later this year.