Both men averaging north of 103 now. This one has really caught fire in the past 10 minutes.

Gary Anderson, yet again, hits a winning double with his final dart and we're back level.

Glen Durrant
Former Premier League champion on Sky Sports

We said Gary Anderson needed a little bit of magic and that is what he's produced.

Rod Studd
Commentator on Sky Sports

That is sensational from Gary Anderson. It is roof-raising.

There's a change of mood-music in this session. Luke Littler was on top of the world and now he's like someone waiting to see the dentist.

Vintage Gary Anderson!

The two-time world champion takes out 164 - treble 20, treble 18, bull - to break the throw.

Is the nine-darter on for Gary Anderson?

He has 150 left for a perfect leg but not to be this time.

Finishing at the next visit will be just fine for the Scot, though.

Luke Littler has the darts as they return to the stage for legs 11-15.

Gary Anderson is waiting on 38 but Littler takes out 72 in two darts and he has a three-leg lead.

Glen Durrant
Former Premier League champion on Sky Sports

Gary Anderson will have been frustrated. He has to respond quickly because Luke Littler is a really good frontrunner.

Anderson will think he has to win this mini-session at least 3-2.

Glen Durrant
Former Premier League champion on Sky Sports

It feels like the consistency is coming back into Luke Littler's game.

Rod Studd
Commentator on Sky Sports

Luke Littler touched the turbo in that second mini-session and he's pulled away. He's in charge now.

Breathless stuff in Wolverhampton!

Luke Littler starts with another maximum and then takes out 124 for a 6-4 lead at the next break.

A clench of the fist and a determined stare from Littler as he leaves the stage.

They're both starting to motor now.

Both players hit 180s but Luke Littler is out in 11 darts to retake the lead.

As if by magic, Gary Anderson conjures up a 124 finish on the bull to move back level.

Glen Durrant
Former Premier League champion on Sky Sports

Image source, Kieran Cleeves/PDC

There's a lot of respect on that stage and it may just be warming up to the game we were expecting.

Luke Littler leads for the first time, after Gary Anderson misses a shot at double 18 for a 147 finish.

They're the ones Anderson might need to take out if he's going to beat the teenage sensation, who doesn't look like he has quite got going yet, despite averaging close to 100.

Gary Anderson misses the bull for a 122 checkout, Luke Littler is way back but Anderson makes a mess of 25 and Littler takes advantage to level the match.

Image source, Getty Images

You will have seen and read so much about Luke Littler's exploits this year, so you may be surprised to see that he is not yet ranked in the world's top 16.

Well, the PDC's Order of Merit is based on a two-year rolling cycle of results and ordered by prize money won in ranking events.

Littler has under a year's worth of results to contribute to his ranking, which is why he is currently 18th in the standings - although he will rise considerably thanks to his efforts in Wolverhampton this week.

The teenager took home £275,000 for winning the Premier League and another £80,000 for winning the World Series of Darts finals, but the prize money from those tournaments does not count as they are invitational events.

Very little pressure on Luke Littler to finish off 45 in two darts, but despite taking leg five, the teenager still trails Gary Anderson as they head to the first break.

Rod Studd
Commentator on Sky Sports

Image source, Kieran Cleeves/PDC

Even with the composure that Luke Littler has, it will start to irk him if Gary Anderson keeps checking out with his final dart.

Luke Littler narrowly misses the bull to take out 95 and Gary Anderson finishes off, again with his last dart, to go 3-1 up.

One more leg before the first break.

Luke Littler is on the board, holding throw with a double four.

After a steady pace in the first semi-final, it's picked up a lot in the second.