Teenager Luke Littler beats Rob Cross 6-2 in final to go five points clear at top of table and close on play-off spot at London's O2 Arena on 23 May
Semi-final results: Littler 6-5 Aspinall, Van Gerwen 2-6 Cross
Quarter-final results: Littler 6-3 Price, Humphries 2-6 Aspinall, Wright 3-6 Van Gerwen, Smith 4-6 Cross
Luke Littler 5-5 Nathan Aspinall
Two more match darts go begging for Nathan Aspinall!
Luke Littler needs tops to snatch it, misses with his first two darts but gets it with his third and he really enjoyed that one.
He gestures to the crowd and the momentum is with Littler now...
Luke Littler 4-5 Nathan Aspinall
John Part
Former PDC world champion on Sky Sports
Momentum can be more important than who has the throw if we get to the final leg.
Luke Littler 4-5 Nathan Aspinall
Image source, PA MediaLuke Littler is not going down without a fight!
Nathan Aspinall misses two darts for the match and The Nuke only has 20 to get.
One dart at double 10 is all he needs. Back on throw.
Luke Littler 3-5 Nathan Aspinall
Brilliant from Luke Littler!
Littler starts with a 174, Nathan Aspinall a 180 but it is only the former who gives himself a shot at a nine-darter.
He can't manage it but he is well ahead and seals a comfortable hold.
Luke Littler 2-5 Nathan Aspinall
Tops for Nathan Aspinall and he is one leg away from knocking out the world champion and runner-up!
Luke Littler makes life a bit harder for himself, setting himself up to finish on the bullseye.
He misses and Aspinall takes out 75.
Luke Littler 2-4 Nathan Aspinall
Wayne Mardle
Former World Championship semi-finalist on Sky Sports
Image source, ReutersLuke Littler is not playing anywhere near the level that he was against Gerwyn Price.
Michael Smith will be praying that Nathan Aspinall doesn't win this semi.
Luke Littler 2-4 Nathan Aspinall
Nathan Aspinall is looking good again!
With Luke Littler not quite at his best, The Asp turns up the heat.
A 75 checkout sealed with double six to go a break up.
Luke Littler 2-3 Nathan Aspinall
Image source, ReutersSomething of a scrappy leg from Luke Littler and Nathan Aspinall makes the most of it.
A simple and very efficient 14-dart hold for the Stockport man.
Luke Littler 2-2 Nathan Aspinall
Big let off for Luke Littler as Nathan Aspinall misses three darts to break.
In fairness, Littler had been cruising before one poor trip opened the door for The Asp.
Littler closed it eventually.
Luke Littler 1-2 Nathan Aspinall
It hadn't quite been flowing for Nathan Aspinall but with Luke Littler breathing down his neck, he hits a superb 174 set-up.
It takes a couple of attempts but he gets the double 16 he needs on his next visit.
Image source, ReutersLuke Littler 1-1 Nathan Aspinall
Two missed darts at double from Luke Littler and Nathan Aspinall makes him pay.
The Asp goes inside on the double eight but hits double four to level it up.
#bbcdarts
Mysteron_Voice: Absolutely no messing about from The Asp during the walk-on, is he a bit *too* pumped for this?
Luke Littler 1-0 Nathan Aspinall
Image source, ReutersLuke Littler takes control of the leg against the darts with a 180.
He then takes out 86 in two darts and, just like that, the teenager has the break.
Luke Littler v Nathan Aspinall
The music has stopped but the fans are still singing Mr Brightside with Nathan Aspinall playing the role of conductor!
Luke Littler v Nathan Aspinall
Image source, PA MediaNo let up from the crowd in Liverpool as they continue to boo Luke Littler as he makes his way to the stage.
Perhaps slightly less vociferously this time but not much...
Nathan Aspinall changes the mood with his walk-on, though. Mr Brightside is blaring out again and sung with real gusto by the fans.
Luke Littler v Nathan Aspinall
Here we go then, it's semi-final time and first up it's table-topping Luke Littler against last week's winner Nathan Aspinall...
Another nightly win and The Asp would replace Littler at the summit.
All of which means these are the last four clashes...
Right then, here is a quick reminder of the results from the four quarter-finals...
Michael Smith 4-6 Rob Cross
A top-class contest but that won't be any consolation for Michael Smith.
He averaged 103.48 to Rob Cross' 102.42 but Voltage had two 180s to his one.
Cross was also ruthless on the doubles with checkout percentage of 66.7, Smith's 44.4% combined with his scoring might have been enough on another night but not this time.
Result: Michael Smith 4-6 Rob Cross
Mark Webster
Former BDO world champion on Sky Sports
That could be a really costly defeat for Michael Smith.