RESULT: Defending champion Luke Humphries beat Nick Kenny 4-0
RESULT: Two-time champion Peter Wright wins 4-2 against Jermaine Wattimena
RESULT: Gerwyn Price beats Joe Cullen 4-3 in sudden-death leg to advance
Afternoon session saw Luke Woodhouse, Jonny Clayton & Stephen Bunting progress to last 16
Damon Heta hit nine-darter in defeat by Woodhouse - read more
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Price 3-1 Cullen (1-3)
A topsy-turvy leg with both players having darts to win it.
Joe Cullen takes it, though, and he's still got hope in this match!
He misses a dart at tops for the set but Gerwyn Price then misses the same target before a wild dart at double 10 goes into the 15.
Cullen wraps it up from there. Work to do but he's extended the match at least.
Price 3-0 Cullen (1-2)
Mark Webster
Former BDO world champion on Sky Sports
This is where Joe Cullen needs to be forceful with throwing first, don't give Gerwyn Price encouragement that he can win the match in this set.
Price 3-0 Cullen (1-2)
Gerwyn Price has had a bit of a lull but he gets on the board in this fourth set with a 17-dart hold.
Not his best but it maybe puts a seed of doubt in Joe Cullen's mind.
The Englishman has the darts as he tries to close out the set.
Price 3-0 Cullen (0-2)
Still a long way to go in the match but Joe Cullen is in a great position to win the fourth set.
The most comfortable of holds for the Yorkshireman with Gerwyn Price looking to have dropped off somewhat now he's got that big lead.
Price 3-0 Cullen (0-1)
Just the start Joe Cullen needed to the fourth set.
He breaks at the first time of asking, hitting double 18 for a 15-darter.
Price 3-0 Cullen
Mark Webster
Former BDO world champion on Sky Sports
Image source, PA MediaJoe Cullen has to rally now. He's got to look at the spirit of Daryl Gurney this afternoon, who couldn't quite turn it around but made it competitive.
Price 3-0 Cullen
Rod Studd
Commentator on Sky Sports
This is the old Gerwyn Price who has come to play tonight. Some would say he's been timid for most of the year but the dragon is breathing fire.
Price 3-0 Cullen (2-1)
Image source, PA MediaGerywn Price is a set away from the fourth round!
He starts the leg with a 180 and despite a stumble, he comes back and takes out 56.
Just two darts needed. He's finding his range for tops now.
Joe Cullen has it all to do.
Price 2-0 Cullen (2-1)
This time Gerwyn Price does hit tops - and yet again there is a cry of jubilation from the Ice Man!
He breaks again and has the darts with a chance to go three sets up.
Joe Cullen looked to have things under control but a pair of loose darts after leaving himself 88 means he doesn't even get one at double - and Price made him pay.
Price 2-0 Cullen (1-1)
Instant response from Joe Cullen!
He needed it and after Gerwyn Price misses yet another dart at tops, Cullen nips in and hits double six to break back.
Price 2-0 Cullen (1-0)
Mark Webster
Former BDO world champion on Sky Sports
Joe Cullen is in big trouble now. He's got to dig deep here. It could race away from him if he's not careful. He's just getting a little agitated now.
Price 2-0 Cullen (1-0)
Image source, PA MediaA huge blow to Joe Cullen's chances in the first leg of the third set.
Gerwyn Price is out in front and although he misses another dart at tops, he is able to come back when Cullen can't take out 141.
Double 10 does it for Price. That's the break of throw.
Price 2-0 Cullen
Mark Webster
Former BDO world champion on Sky Sports
Joe Cullen can feel unfortunate so far but that is set play.
There is no need to panic yet, but if he concedes an early break in this set then the panic may set in.
Price 2-0 Cullen
Joe Cullen averaged 109 in the second set - and lost...
Alexandra Palace is situated in North London and has staged the PDC World Darts Championship every year since the 2008 edition, won by John Part of Canada.
Between 1994 and 2007, it was held at Circus Tavern in Purfleet.
The Ally Pally is also the home of snooker's Masters event, which is played every January.
Price 2-0 Cullen
Rod Studd
Commentator on Sky Sports
Gerwyn Price is flexing his muscles, literally and metaphorically, here.
Joe Cullen can find himself a little bit unfortunate here because of the quirks of set play.
Price 2-0 Cullen (3-2)
Gerwyn Price is fired up - and is two sets up!
He wins the deciding leg of a set for the second time, helped no end by a 180 to start.
Left with an 82 out, he misses the 25 but hits 20 then goes treble 12, double 13 before turning and giving it the big one to the crowd.
Price 1-0 Cullen (2-2)
Mark Webster
Former BDO world champion on Sky Sports
This is Joe Cullen's opportunity now. He needs a big leg here.
Price 1-0 Cullen (2-2)
Image source, Getty ImagesSo close! Gerwyn Price misses tops on the inside for a 125 checkout to win the set.
But he misses and Joe Cullen hits double 14. We're heading to another deciding leg.
Price 1-0 Cullen (2-1)
Rod Studd
Commentator on Sky Sports
Gerwyn Price is at it tonight, make no mistake about that.