John Higgins is the latest big name to crash out of the UK Championship after losing a thrilling second round clash 6-5 to his friend and fellow Scot Alan McManus.
The three-time champion, who struggled in his first round win over Dechawat Poomjaeng, won the first frame but lost the next three to trail McManus 3-1 at the interval.
Four frames on the bounce put Higgins one away from victory at 5-3 but McManus reduced the deficit before dominating the last two frames to reach round three.
Higgins' exit followed those of world number one Mark Selby, who lost to amateur James Cahill on Thursday night, and Shaun Murphy, who was beaten on the opening day.
But there were no such problems for world champion Mark Williams, who brushed aside Daniel Wells 6-0 to move closer to a title which would see him return to world number one.
Responding to the news that two Chinese players, Yu Delu and Cao Yupeng have been banned for 10 and six years respectively, Williams told Eurosport: "I'd like to see in the new contract that anyone found to have anything to do with gambling on snooker is banned for life."
Jack Lisowski also made it through with a comfortable 6-1 win over Mei Xi Wen and will be joined by Zhou Yuelong, who beat Mark Davis 6-4.
Neil Robertson advanced to the third round with a 6-3 win over Thepchaiya Un-Nooh - despite losing the first three frames of the match.
Stephen Maguire will join him after seeing off Scott Donaldson with a 6-4 win, while Xiao Guodong beat Ben Woollaston 6-3.
Ken Doherty will face Ronnie O'Sullivan in a clash of world champions on Sunday.