Welshman Jamie Lewis produced the biggest win of his career at the Alexandra Palace as he eliminated number two seed Peter Wright from the PDC World Darts Championship.
The 26-year-old finished the match with an average of 107.27, as he hit 13 180s in his 4-1 victory over the UK Open winner.
Lewis, who started in the preliminary round of the tournament, has now played three matches and has the opportunity to reach the quarter-finals if he can beat James Richardson.
There was also a scare for the world number one and defending champion Michael van Gerwen, before the Dutchman came through 4-2 against Gerwyn Price.
Mighty Mike looked likely to go 3-2 down in the match, but Price missed three darts at double 20 to allow the number one seed to snatch the fifth set before wrapping up the tie in the sixth.
The two-time winner averaged 100.06 in a performance which included 12 180s and a 170 maximum checkout.
Van Gerwen will now meet his Dutch compatriot Raymond van Barneveld in the quarter-finals after Barney booked his spot in the last eight with a 4-1 victory over Vincent van der Voort.
The pair faced each other in this tournament in 2016 when 2007 winner Van Barneveld eliminated the top seed in the third round.
Phil Taylor returns to the oche on Thursday evening when he faces Keegan Brown. The Power, who is playing in his final tournament as a professional before retiring, is 1/12 to make it safely into the quarter-finals.
The 16-time world champion remains on course to meet Gary Anderson in the semi-finals in the bottom half of the draw and is now 3/1 to lift the trophy.
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