Jelle Klaasen stunned world number three Phil Taylor to book a place in the quarter-finals of the PDC World Championship at the Alexandra Palace.
Having earlier missed the chance to move 3-1 ahead, Dutchman Klaasen had one dart to hit double 18 and knock out the 16-time World Champion but he missed and Taylor took advantage to tie things up at 3-3.
Taylor looked in charge of the deciding set as he moved two legs ahead, but the world number 19 was not done and roared back to win the tie-break 4-2 and claim a 4-3 victory to set up a clash with Alan Norris, whose fairytale PDC debut continued earlier in the day as he saw off Mark Webster in five sets.
Klaasen told Sky Sports 3: "I almost gave that away. You know you can't miss against Phil.
"I never gave up and I still felt I could win the game so I'm over the moon."
After praising Klaasen for his performance, Taylor said: "Do you want me to be honest? I'm not fit enough, I'm not mentally right.
"I've got over this year now. I'm getting divorced in February - it's well publicised - so next year I can push on."
Peter Wright won an incredible seven-set thriller in a dramatic tie-break at the expense of Dave Chisnall to book his place in the last eight.
PHIL TAYLOR OUT! @JelleK180 knocks out the 16x World Champ. This has become the tournament of shocks! #WHDarts https://t.co/v49e871PgS
— PDC Darts (@OfficialPDC) December 31, 2015
The 2014 runner-up, who will now face two-time world champion Adrian Lewis, eventually took the final set 6-4 after Chisnall had missed a dart for the match.
Wright hit 14 180s and had an average of 103.69, while Chisnall had nine maximums with an average of 102.26 and hit a 160 finish in the third set.
In the decider, Chisnall missed double 16 to win the match 4-2, allowing Wright to draw level at 3-3 but the final set went to 10 legs, with Wright landing a double six to progress.
There will be no play on 31 December, with the quarter-finals being held on New Year's Day across two sessions.
