RESULT: Luke Humphries beats Michael van Gerwen 6-5 in final
Van Gerwen secures place in play-offs alongside teenager Littler and world champion Humphries at London's O2 Arena on 23 May
Aspinall (25 pts) and Smith (24 pts) will face each other next week in Sheffield for final play-off spot
Semi-final results: Humphries 6-1 Smith & Van Gerwen 6-1 Littler
Quarter-final results: Van Gerwen 6-3 Price, Littler 6-1 Wright, Humphries 6-1 Cross, Aspinall 3-6 Smith
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Luke Humphries v Michael Smith
Mark Webster
Former BDO world champion on Sky Sports
Luke Humphries was ruthless in his quarter-final.
Top players play in spells and get things done in the blink of an eye.
He'll have enjoyed that win and be delighted, but he wants to win the night and top the table.
Luke Humphries v Michael Smith
Laura Turner
Ex-Women's World Championship quarter-finalist on Sky Sports
Luke Humphries laid down a marker in his quarter-final.
Result: Michael van Gerwen 6-1 Luke Littler
I'm not sure how much that one rogue leg affected things but numbers-wise, it doesn't make for great reading for Luke Littler.
An average of 86.89 is well down on what we've come to expect from him, Michael van Gerwen was at 92.89.
The 180 count was four to two in MVG's favour and despite hitting only six of 25 darts at double, the Dutchman was better on the outer ring too.
He was at 24%, Littler posted 14.3%.
Michael van Gerwen 6-1 Luke Littler
Image source, ReutersMichael van Gerwen dishes out a heavy defeat to Luke Littler!
Impressive stuff from Mighty Mike. He hits double six to seal the win and make his top-four place that bit more secure.
Victory in the final would give the Dutchman a record fifth weekly win in a Premier League campaign.
Littler, despite that loss, remains clear at the top of the table.
Michael van Gerwen 5-1 Luke Littler
That's more like it!
A 74 checkout for Michael van Gerwen and he is on the brink of another final.
Luke Littler needs an almighty comeback if he is to progress from here...
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Ian Shepherd: I wasn't convinced that Littler being in the Premier league was a great idea, too much too soon? After a slowish start, he's blitzed the field tbh. What do I know!!
Michael van Gerwen 4-1 Luke Littler
Wayne Mardle
Former World Championship semi-finalist on Sky Sports
This is how difficult darts is. You've got to wrap every leg up.
Michael van Gerwen 4-1 Luke Littler
Two of the best darts players in the world have just finished a leg like you might with your mate down the pub!
Incredibly they both end up down to double one having missed countless darts for the leg.
Michael van Gerwen eventually wins it with his 26th dart.
That was quite something.
Michael van Gerwen 3-1 Luke Littler
Stuart Pyke
Commentator on Sky Sports
Is Michael van Gerwen reawakening? If he does, we're in for some thrills and spills over the next few months.
Michael van Gerwen 3-1 Luke Littler
Image source, PA MediaSeven perfect darts from Michael van Gerwen has the crowd - and the Dutchman - dreaming of a nine-darter.
He can't finish it off but he does make it a 10-darter for a crucial break of throw.
Michael van Gerwen 2-1 Luke Littler
Wayne Mardle
Former World Championship semi-finalist on Sky Sports
Michael van Gerwen will see Luke Littler as a younger self and he's got to.
Nobody has come along like Van Gerwen until Littler.
Michael van Gerwen 2-1 Luke Littler
Oh yes, they're both heating up now!
133 for Michael van Gerwen, 170 for Luke Littler, 180 for MVG - three stunning visits.
Mighty Mike finishes it off by hitting double six to hold.
Michael van Gerwen 1-1 Luke Littler
Image source, PA MediaSuper response from Luke Littler, following up a 180 with an 82 out.
A 12-darter to hold and level things up early in this last-four contest.
Michael van Gerwen 1-0 Luke Littler
The first 180 of the semi-final sets Michael van Gerwen on his way to a 17-dart hold.
It probably should have been a little more comfortable but three missed darts at double drag it out a bit.
Michael van Gerwen v Luke Littler
Mark Webster
Former BDO world champion on Sky Sports
It was really good from Michael van Gerwen. I wasn't expecting that kind of performance in terms of average. I thought he'd win but there would be some nerves. It was a great display. I've not seen a celebration like that from him for a while.
I can see him winning the night now. He's got the bit between his teeth.
Michael van Gerwen v Luke Littler
Image source, PA MediaMore boos for Luke Littler, albeit not quite as loud as before his quarter-final.
That doesn't stop the teenager was taking selfies with a couple of fans in the crowd before he starts his walk-on.
Much more positive fan reaction for Michael van Gerwen. He looked in top form in his win over Gerwyn Price and is up to third in the table.
Michael van Gerwen v Luke Littler
Mark Webster
Former BDO world champion on Sky Sports
Luke Littler is not petulant. He just gets on with it.
He knows what he is doing. He is light years ahead of his years and experience in this sport.
He has been a brilliant addition to the Premier League.
Result: Nathan Aspinall 3-6 Michael Smith
Mark Webster
Former BDO world champion on Sky Sports
Michael Smith is still battling away and that was a huge victoy.
Nathan Aspinall allowed Michael, who looked a bit edgy to start, to settle.
Smith needs the points. He needs to go on now. Don't settle for two points.
Nathan will be concerned now. It could be a straight shootout next week.
Rod Studd
Commentator on Sky Sports
This is tense stuff in the build-up to the play-offs now.