Michael van Gerwen continued the theme of upsets at the World Grand Prix in Dublin by beating world champion Adrian Lewis 3-1 in the last 16.
With reigning champion Phil Taylor, two-time winner James Wade and Raymond van Barneveld already knocked out of the event, double world champion Lewis followed after a sloppy performance against the young Dutchman, who was right on his game.
Van Gerwen came flying out of the traps and swept to the first set, and although Lewis replied in kind with the second the Dutchman hit back in a more even third to go back in front.
A superb 170 finish from Lewis kicked-off the fourth set, but Van Gerwen managed to get back into it with sloppy visits from the world champion seeing him regularly fall behind in the scoring.
The Dutchman was left with a simple two-dart kill at 44 to seal his page into the quarter-finals after taking out a huge scalp in Lewis as the big names continued to stumble in Dublin.
"I'm very happy to win in a tournament like this against the world champion, it means a lot to me," Van Gerwen told Sky Sports. "This is a big step for me with another good result in another major tournament.
"I've taken some confidence from recent games and I'm glad I could take it into that match - I had some loose darts out there but I kept in there fighting and hopefully my game can improve from here."
Andy Hamilton is up for van Gerwen next after he came through a ding-dong tussle with Steve Beaton - coming from 2-1 down to win the next two sets and prevail 3-2.
In an even contest it just came down to the finishing doubles, with Hamilton hitting over half his attempts as he stays in with a shout of winning his first major title.
"I've made every major quarter-final apart from the UK Open this year, so I'm showing that I deserve to be in the top eight - there's no reason why I can't win this now," said The Hammer.
"Once Phil Taylor goes out of the tournament, even though he was in the opposite half to me, everybody pushes up their game because he's such a great player. There's going to be a new name on the trophy, and hopefully it's mine."
