Two-time champion Mark Williams lost in the third round of the Welsh Open to Anthony McGill.
Williams missed a golden chance to win the first frame, but bounced back with a break of 91 in the second frame.
A run of 76 points was enough for McGill to take a third point, while some loose safety play from Williams allowed the Scots to pick up the piece and seal a 4-1 win.
Williams joins another former world champion mark selby Upon finishing the tournament at Llandudno.
Aaron Hill defeated the four-time world champion 4-2 at Cymru, while Selby was eliminated in the second round.
After losing the first frame, Hill won three straight, including a tense fourth frame that included a safety shot over 10 minutes on the final green ball.
Selby pulled one back to make it 3-2, but the Irishman made a break of 42 to win the match.
Hill will face China's Zheng Yifan in the third round on Thursday.
Elsewhere on Wednesday, Scotland's John Higgins He beat the Welshman, scoring 124 in the third frame. Ryan Day remains 4-1 kyren wilson suffered a shocking 4-1 loss to anthony hamilton.
Welsh pair achieve success dylan emery and jack jonesdefeated Noppong Sengkham and Anda Chan respectively to advance to the third round.
However, Welshman Duane Jones was sent off in a 4-1 loss. Matthew Selto.
graham dot Defeated Wu Yize 4-2 to advance to the third round and face the next match. Luca Brecel Defeated Joe O'Connor 4-0.
mark allen They also advanced after a 4-1 win over Jiahui Si. robbie williams Won against Adam Duffy 4-2.