STEPHEN MAGUIRE secured his spot in the quarter-finals by beating Shaun Murphy 13-9.

The rivals have feuded for two decades following an incident where Maguire was penalised a frame for forgetting his chalk and the Scotsman held off a late fightback from Murphy to seal victory.

He resumed on Sunday morning with a 10-6 overnight lead and continued his quest to reach the last eight with a break of 68 before Murphy pulled a frame back.

Maguire then moved within one frame of victory but Murphy continued to battle, a 67 break earning him the following frame before he took the first after the mid-session interval to trail by three.

However, Maguire sealed victory in style, hitting the only century of the match with a 127 to set up a quarter-final meeting with David Gilbert.

Maguire told the World Snooker Tour website: “(Murphy) looked like he was comfortable in that session, so I was starting to get geared up for a comeback and a close finish. Once I got my chance, I finished pretty well there.

“Me and Dave (Gilbert) get on and we’ve grown up with each other for the best part of 30 years. He is a great player. He’s not had a great season by his standards. I’m probably the same, so we are coming into a good game at the right time.

“The quarter-finals are the pressure matches. I’ve won a couple and lost a couple. It is a match you don’t want to lose in because that arena changes and it does become the best in the world with the one table.”

During Saturday’s session Murphy fist pumped after winning a frame and Maguire admitted it provided him some motivation.

“Shaun made a mistake. He knows me well enough and I get down on myself,” Maguire said.

“He won a frame I should’ve won and I was sitting there hating myself when the fist pump came out and I thought, ‘you’re having it’ and all my attention went on that.

“It was satisfying beating a player as good as Shaun is in the last 16 of the World Championship.”

Meanwhile Ronnie O’Sullivan showed signs of his best form as he took a 5-3 lead on Ryan Day at the World Championship earlier yesterday.

Both players made a number of big breaks in a high-quality first session of their last-16 clash at the Crucible. The game resumed last night after the Star went to press.