John Higgins staged a stunning comeback from 3-0 down against Mark Williams to reach the quarter-finals of the Northern Ireland Open.
The world number 7 looked down and out at one stage, but one error from the Welshman opened up an opportunity to get back into the match - and he took full advantage to win the best-of-seven encounter 4-3.
Higgins, ranked one place above Williams, was out of sorts in the first three frames of the match, and his opponent make no mistake.
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In the first two frames, the Scot could only amass a combined total of 21 points, as the 'Welsh Potting Machine' cleaned up, first with a break of 69 and then by doubling his advantage by taking the second 79-11.
Higgins started to work his way back into the match in the third frame - his break of 56 higher than his rival's best effort, but he would still find himself 3-0 down by the end of it.
In their 40th meeting at ranking event level, it looked like Williams was going to secure just a second ever whitewash over Higgins, but with victory nearing, he missed what should have been a fairly simple red, and Higgins cleared the table to give himself a window back into the tie.
That seemed to light the fire in the four-time world champion, who continued his momentum with a 110 break to move to within one frame of levelling.
The sixth frame was a much more close and tactical affair, but Higgins was in the groove now and he sent the tie to a decider, edging out 64-53.
That set up a tense finish, and Higgins held his nerve to see out a stunning victory, with Williams conceding the frame at 75-7 down.
World number six Shaun Murphy recovered from losing the first frame of his match with Stuart Bingham to move into the last eight.
Bingham made the early headway by going 1-0 up, but that woke Murphy up in style, limiting his opponent to a combined total of 23 points for the rest of the tie.
Murphy won the next four frames, and sealed the victory with a century break, taking the fifth frame 110-7 to wrap up what ended up as a routine win.
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