Reigning champion Mark Selby and world number two Judd Trump were both knocked out of the Scottish Open at the last-16 stage in dramatic fashion on Thursday.
Scot Anthony McGill defeated Selby while David Gilbert beat Trump.
England’s Selby and Trump both went 3-0 down in their respective matches before levelling and eventually losing 4-3.
“I’m a very lucky boy. I was three up and playing well but I thought I’d thrown the match away,” Gilbert told Eurosport.
“How I’ve ended up winning that match is ridiculous. I’m over the moon but I deserved to lose.”
Six-time world champion Ronnie O’Sullivan faced a battle against Welshman Jamie Jones, but came through 4-3.
Both players hit the table in frustration in a tense encounter, but O’Sullivan kept his cool in the end.
Elsewhere, Luca Brecel beat Fergal O’Brien 4-1 to go through to the last eight and ninth seed Stephen Maguire saw off Ben Woollaston by the same score.
