(Another!) last-leg deciderpublished at 21:42 BST 7 May
Clayton 5-5 Littler
Ian Mitchelmore
BBC Sport Wales at First Direct Arena, Leeds
We've got another one!
Strap yourselves in folks.
Semi-final results: Clayton 5-6 Littler & Humphries 6-5 Bunting
Quarter-final results: Price 2-6 Clayton, Littler 6-5 Van Gerwen, Rock 5-6 Humphries, Van Veen 5-6 Bunting
Luke Littler and Jonny Clayton already guaranteed place at play-offs at London's O2 Arena on 28 May
Adam Millington
Clayton 5-5 Littler
Ian Mitchelmore
BBC Sport Wales at First Direct Arena, Leeds
We've got another one!
Strap yourselves in folks.
Clayton 5-5 Littler
Jonny Clayton starts this leg with a 180. He takes this to a last-leg decider.
He has 11 left after missing double 11, which could be tricky, but manages to see it off.
We are off to ANOTHER decider.
Clayton 4-5 Littler
Another 180 to kick off a leg from Luke Littler. It only ends up being four perfect darts, though.
Jonny Clayton can't get anywhere near his level of scoring to begin the leg and Littler wraps it up on tops before he has even a slight chance of causing trouble.
That was a 12-darter.
Clayton 4-4 Littler
Rod Studd
Commentator on Sky Sports
Image source, PA MediaThis is a cracking game. It is capturing what the Premier League is all about.
Clayton 4-4 Littler
Ian Mitchelmore
BBC Sport Wales at First Direct Arena, Leeds
We've already had three last-leg deciders tonight.
Are we on course for a fourth here?
The standard of this one has been superb.
Clayton 4-4 Littler
Jonny Clayton keeps the scores level, setting up double 18 as Luke Littler is a long way behind.
Clayton pins the double with his first dart at it.
On we go.
Clayton 3-4 Littler
Rod Studd
Commentator on Sky Sports
Luke Littler gets away with one there.
Clayton 3-4 Littler
Ian Mitchelmore
BBC Sport Wales at First Direct Arena, Leeds
Having gone 3-2 down, Luke Littler has recovered incredibly well to lead.
Clayton 3-4 Littler
Luke Littler misses three darts at double 16 and gives Jonny Clayton a chance to snatch the leg.
But Clayton misses two himself, and those are the sorts of errors that get punished by Littler.
Littler pins it with his next after missing five at doubles.
Clayton 3-3 Littler
Image source, PA MediaSix perfect darts once again from Luke Littler. He is teasing a nine. Will we see one tonight?
His scoring slows once he's down to 141 and gives Jonny Clayton a slight chance to get back into it.
Clayton can't take advantage and Littler wraps it up on double nine.
Clayton 3-2 Littler
Ian Mitchelmore
BBC Sport Wales at First Direct Arena, Leeds
Image source, PA MediaA bullseye to cap off an 81 out, and Clayton points his finger at the camera once again.
He really is on top form here.
But Littler responds with six perfect darts in leg six.
This is superb stuff from both.
Clayton 3-2 Littler
Rod Studd
Commentator on Sky Sports
He does not miss that!
This is one of those outrageous performances from Jonny Clayton at the moment.
Clayton 3-2 Littler
Image source, PA MediaHere we go! Could that end up making a big difference?
Clayton gets the first break of the match and he finishes on the bullseye. He makes it look so easy on the bull.
113 average, every double hit.
Clayton 2-2 Littler
Ian Mitchelmore
BBC Sport Wales at First Direct Arena, Leeds
Jonny Clayton is averaging 110.
These two are well and truly delivering here.
Clayton 2-2 Littler
Absolutely rapid from Jonny Clayton as he makes it all square once again.
He ends up down to 62 and only needs one dart at the double to win it.
He is playing very well.
Clayton 1-2 Littler
John Part
Former PDC world champion on Sky Sports
There isn't an ounce of nerves in these two at the moment.
There is some great execution and this is how you like to see the game played.
Clayton 1-2 Littler
The Leeds crowd thought they were about to see a nine-darter.
Six perfect darts from Luke Littler. Then he hits treble five.
Those six have put him so far ahead, though, that Jonny Clayton doesn't have a change of winning the leg. Littler wraps it up on tops.
Clayton 1-1 Littler
Ian Mitchelmore
BBC Sport Wales at First Direct Arena, Leeds
You can already see why these two are leading the way in the table.
This could go all the way.
Clayton 1-1 Littler
This is much more like it than in the quarter-finals. Full throttle from the beginning.
Jonny Clayton is down to 32 before Luke Littler has reached a finish. He needs just one dart on the outer ring to wrap up the leg.
Clayton 0-1 Littler
Despite a 180 in that leg from Jonny Clayton, Luke Littler takes the opening leg.
He has 45 left and wraps it up coolly, with five setting up tops.
He finishes on double 10.