Remarkable Allen comeback stuns Selby in Riyadh

There was final-frame drama as Mark Allen completed a remarkable come-from-behind victory over Mark Selby in the quarter-finals of the Riyadh Season World Masters.

Allen took the decider by doubling the black as he came back from 3-1 down, with Selby appearing to cruise through the opening frames.

With a two-frame cushion, Selby had taken a 54-point lead in the fifth, but a miss allowed Allen to step up with a clearance of 65. And it was a similar story in the sixth as a missed black allowed Allen to come from behind to level it.

A tense deciding frame was full of mistakes and fouls as Allen again came from behind, helped by a fluke green before his stunning winning shot.

"I actually thought the white was going to drop in," he said on Eurosport. "It was such an easy shot to flick off the black, but I thought, 'No, I'm going for it'. As long as I got a really good white, I'd be alright."

Ali Carter cut a frustrated figure after losing his quarter-final 4-1 to world champion Luca Brecel.

Carter had looked on course to level the match at 2-2 but his night unravelled after a late missed brown which he blamed on a scoreboard mistake.

"I'm clearing up, I want to get on with it and the scorer's got the score wrong," he said. "I've stunned up the table, thinking I can play anything I want.

"I look at the scoreboard and now all of a sudden I'm thinking, 'Have I miscalculated?' and it's just completely put me out of my rhythm.

"I thought I've got to pot the brown to be able to draw. I don't know how it worked out but I'm looking at the blue and all of a sudden the ref said I'm on 41 and I'm 22 behind or something. It just completely threw me."

Carter was also unhappy with the four-hour wait for his match to start after Selby and Allen went