Stuart Bingham upset former world champion Mark Williams to get past the opening round of the Masters for just the second time in his career.
World number two Williams, a two-time winner of the Masters, recovered from losing the first frame to lead 2-1.
But Bingham, making his 10th appearance in the competition, claimed the next five frames to clinch a 6-2 victory.
In the quarter-finals Bingham, 43, will face Kyren Wilson, 28, who also fought back to win 6-2 against Jack Lisowski.
Bingham, ranked 14 in the world, produced breaks of 76 and 86 to go 4-2 up before following up a snooker to win his fifth frame.
And the Englishman, who reached the 2016 semi-finals the previous time he progressed from the first round, made a break of 54 to seal victory.
Earlier, compatriot Wilson recovered after seeing Lisowski deliver some superb attacking snooker to win the first two frames with breaks of 56 and 72.
But Wilson, the world number eight, replied with a break of 66 in the third before easing to a quarter-final spot – his highest break was a 70 in the final frame.
“He was flawless for two frames,” said Wilson. “The first game’s always the hardest so I’m delighted to win it.
“It’s tough getting into this tournament, but once you get that first game out of the way you settle.”
Wilson was in charge after taking an error-strewn fourth frame after Lisowski, playing in the tournament for only the second time, missed a pink with the rest.
His biggest scare was during the fifth frame when a wasp landed on his neck and although referee Ben Williams removed it, he was stung on his hand for his troubles.
“I died a slow death in the last four frames, I wasn’t really in any of them,” added Lisowksi.