World number one Mark Selby crashed out of the Ladbrokes Players Championship after losing 5-2 against Marco Fu.
The Leiecester cueman made a bright start when taking the opening frame with a break of 86 and then won the third to go 2-1 up.
But Fu then won four frames on the trot, making breaks of 85 and 68 along the way, to set up a semi-final showdown with either Ding Junhui or Anthony Hamilton on Saturday.
Earlier, Ali Carter reached the semi-finals in Llandudno with a 5-3 victory against Neil Robertson.
World number 12 Carter came from behind in his best-of-nine encounter with Robertson, winning the last three frames to set up a last-four clash with Judd Trump, who overcame Ronnie O'Sullivan in their quarter-final on Wednesday.
Carter made a break of 63 in the opening frame against his Australian opponent but it was not enough to take it, however a run of 94 soon levelled the match in its early stages.
Robertson made 57 in the fifth frame to move 3-2 up, but Carter comfortably took the sixth and a break of 84 in the next nudged the Essex potter 4-3 in front, from where he went on to seal his place in the last four.
Thursday Results & Friday Schedule
Thursday March 9
Afternoon Session (1300 GMT)
Quarter-Finals (Best of 9 frames)
Neil Robertson 1-5 Ali Carter
Evening Session (1900 GMT)
Quarter-Finals (Best of 9 frames)
Mark Selby 2-5 Marco Fu
Friday March 10
Afternoon Session (1300 GMT)
TV Coverage: ITV4
Quarter-Finals (Best of 9 frames)
Ding Junhui v Anthony Hamilton
Evening Session (1900 GMT)
TV Coverage: ITV4
Semi-Finals (Best of 11 frames)
Judd Trump v Ali Carter
