Defending champion John Higgins went out of the Welsh Open in the fourth round, but Ronnie O’Sullivan is through to the quarter-finals in Cardiff.
Scotland’s four-time world champion Higgins, 40, was beaten 4-1 by 24-year-old Welshman Michael White.
Englishman O’Sullivan, 40, had little trouble beating China’s Yu Delu by the same score.
“I’m pleased to still be in the tournament. No matches here are a gimme,” said O’Sullivan.
“John Higgins, the second greatest player I have ever seen, has been beaten. It takes a top player to have a slightly off day and you are going out.”
O’Sullivan lost the opening frame when Yu fluked a re-spotted black.
“Yu Delu is a brilliant player so I was a bit nervous at the start,” said O’Sullivan.
“I maybe was giving him a little bit too much respect. I lost the first frame but got some momentum going after.”
Australia’s Neil Robertson and England’s Ben Woollaston joined the five-time world champion in the last eight.
Robertson beat Hong Kong’s Marco Fu 4-2 while Woollaston ousted England’s Martin Gould 4-1.