What has Adrian Lewis got left? He must win all three of the remaining sets to win a third world title.

Anderson was in this position last year. He led Phil Taylor 6-4 before being pegged back to 6-6. The Scot won the crown in the 13th and final set.

Now we're seeing the best of these two men. Lewis a 180, but still not enough to get ahead of Anderson.

The Scot down to a finish first, he'll have a look at 108 for the set. Lewis is back on 117.

17. Tops? A kiss on the lipstick! Gary Anderson leads 6-4 and is a set away from retaining his title.

Really? Can Gary Anderson's eyesight be that bad? Lewis for tops and a hold... just low. Anderson remembers where D12 is and breaks the Lewis throw. He'll come back for the set. Win this leg and he's one set away...

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That doesn't hurt Anderson too much, he still has the advantage of a break. But, Lewis is improving. He needed only 42 darts to win that set. Lewis hasn't quickened his throw too.

Anderson must take 86 as Lewis waits on 36 - sealed with D8. It's hotting up.

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They sing for Lewis as he looks to cling on to Anderson's tail. It might not be high quality, but it is dramatic. Anderson, by the way, has missed D10 11 times in this match.

Lewis miles in front... 121? Tops? Yes! Lewis wins the set in the blink of an eye.

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Did that stop the rot for Lewis? He flows with a 177, followed by an Anderson maximum. Time to see the best of these two? Back-to-back 180s from the Scot, leaving 58. If he can't see, how good might he be with some glasses?

Then again, three darts missed at D10, with Lewis in to punish. The Stokie to throw for the set. 

The Ally Pally commands you to stand up if you love the darts. Lewis is under pressure, any break of his throw could be terminal now. Anderson is to a finish first, 161, Lewis waits on 76.

Anderson can't take it, so Lewis gets a look at tops. In she goes.

Here we go again. Anderson needs two sets to retain his title. Lewis has the darts...

Liam Forsyth: The school Christmas holidays clearly haven't done Gary Anderson any good! His maths are all over the place.

Anderson gestures to the ref that he can't see. Really? You're playing very well for a man who can't see what's going on.

He blows his cheeks as he leaves the stage and exchanges a glance with wife Rachel. He's two sets to the good, but looks concerned.

What must Lewis make of it? He has to win four of the next five sets.

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Anderson, then, for a 5-3 lead. He's looking solid now, with some heavy scoring to go with his superior doubling. He's down to 86, with Lewis miles back.

Oh my word, what's he done? Another mis-count. He had 50 left, and hit treble 20! He bust the score!

He gets another chance, but misses bull. Lewis for 138... just missing double 12.

Anderson two at D12. He goes 5-3 up, but in such bizarre circumstances.

The pressure mounts on Lewis, but a 180 says he's not feeling it. Anderson, though, keeps the scoring high to keep pace with Jackpot. Lewis can't get a shot at 160, so Anderson comes for 161. Both men wobbly on the big checkouts, not helped by a bounce-out for Lewis.

A really, really scrappy leg, characterised by Lewis missing double five. Anderson nips in and Lewis screams in anger.

Seven the target, remember. Anderson, all tattoos on his right forearm, gets the eighth set under way. If he holds throw throughout, he'll be the big favourite. Lewis keeps pace with his 12th maximum, but it's Anderson on the dancefloor first. Six from 127 for Anderson, who leaves 40.

Tree at tops... one needed. Simple hold.

Is that the crucial moment of this final? Gary Anderson will return after the break to throw for a 5-3 lead.

If I'm honest, it still seems a slightly poor quality final. We expected more than these averages of 99 (Lewis) and 98 (Anderson).

Solid from Anderson, scoring that keeps Lewis at bay.That red bit in the 20 bed is kept busy as the players sing for the best of them all, Phil Taylor.

Lewis gets loose, leaving Anderson with six from 130. He sets up 78 as a timely 140 gets Lewis to 36.

One dart at top for Anderson...missed. Lewis at double 18... no. D9? No! Who wants this?

Gary Anderson does! Double 10 gives him the seventh set against the darts. The champ leads 4-3 in a race to seven.

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Keith Dellor, a former world champ, is in Lewis' corner. The darts are warm now, there's 180s traded. Anderson for 104... bull? In the 25.

Lewis must take 48, you feel. What is going on? Two too high.

Anderson for D12...double six is the arrow. We have three breaks in as many legs, but Anderson is throwing for the set.

They sing Anderson's name as he looks for the hold that consolidates the break. Is he just finding his best? A 180 says so, but Lewis is down to 81 first.

Double 12? A break back. This is blow for blow stuff, a real slobberknocker.

Can either of these players steal a march? Lewis has the darts in the seventh set. Time for a move?

For the first time in the match, Anderson nudges his average ahead of Lewis, but both hover under 100.

Two 14s for Anderson to break? Just wide. Lewis for tops? Too high.

Anderson to break? D7 landed. Is this the surge?

The 20 bed is starting to bear scars of being peppered. Big noise in the Palace as Anderson come for 170 and the set. One T20, but the second one missed.

Lewis for 101 to keep in it. D12? Too high.

Anderson gets one at the bull... bullseye! Anderson takes the set and levels it at 3-3.