Clemens is indeed first to a finish, although Humphries applies pressure with 177.

The German can't get to a double, and Humphries breaks with a 70 out.

Gabriel Clemens opens the throw in set three. He needs this set, surely.

Fourth seed Stephen Bunting is the highest-ranked player eliminated from the tournament so far - but he is far from alone in being among the big names to bite the dust.

13th-seed Martin Schindler and 16th-ranked Damon Heta were heavily beaten this afternoon. So while you might expect the 16 highest seeds to all be in contention for the last 16, the reality is far from it.

Here are the players in the top 16 who have exited before round four - will Luke Humphries or Michael van Gerwen join them?

• Stephen Bunting (4)
• Danny Noppert (6)
• James Wade (7)
• Chris Dobey (8)
• Gerwyn Price (9)
• Ross Smith (12)
• Martin Schindler (13)
• Damon Heta (16)

Luke Humphries averaged 108.59 in the second set.

The form of a champion.

Gabriel Clemens raps in 180, which is missed by the crowd who were distracted by someone carrying some beers or something.

Clemens is on a tricky 63 finish, and he can't knock in the double.

Humphries needs 52... nailed by D16. 2-0.

Stuart Pyke
Commentator on Sky Sports

Luke Humphries looks more purposeful now.

Another maximum by Humphries, good tit-for-tat contest developing in this set.

That also happens to be the 800th 180 we've seen in these championships. Will we break the 1,000 mark?

Humphries is now the one with three at D10, finished.

Good response by Clemens, a 180 of his own to start the second leg.

He then racks up a 140, and earns three darts at D10. He finishes, re-establishing himself in the fight.

Image source, PA Media

Humphries starts with the darts in set two. He will expect to move 2-0 up; Clemens is already up against it.

The Leeds United fan drops in his first 180 of the match to set up a 101 finish, and he knocks it off.

Ominous.

Image source, PA Media

We told you earlier that injured Tottenham midfielder James Maddison was in the crowd. There he is above. It's been a good day for him, with his side winning away at Crystal Palace earlier.

He's not the only sporting superstar in the house though. Some of the Europe Ryder Cup-winning side are in too. Here's Shane Lowry enjoying his evening.

Image source, Getty Images

Luke Humphries has been shown early doors he will have to work for this one, and so far he has not been perfect.

He sets up 46 for the set, with Clemens on 143 - which the German Giant cannot clear.

Humphries cleans up, and is on his way.

Clemens is here for a match - he records the opening 180, to more German cheers.

He has time to set up a finish again with Humphries well back, but he can only get to 97, then 58. Those set-up darts will have to improve.

And then he misses twice at tops!

A brutal break by Humphries.

Image source, Getty Images

There is a huge contingent of German fans in Ally Pally tonight, they have both Gabriel Clemens and Arno Merk to watch tonight. They greeted that opening leg by Clemens as if he had won the title.

Humphries meanwhile sets up 56 for his first leg of the match - and he gets it, no bother.

Glen Durrant
Former Premier League champion on Sky Sports

That is an early settler for Gabriel Clemens.

Gabriel Clemens throws first in set one. You sense he really needs to hold here.

He is first to a finish, 122. The treble 18 eludes him, however he comes back with three at D16.

And he makes it! That's very welcome for Clemens.

Image source, Getty Images

Gabriel Clemens has beaten one seed already, dumping out 31st ranked Wessel Nijman.

But Luke Humphries is a different kettle of fish entirely.

The winner here faces Nathan Aspinall or Kevin Doets in round four.

Wayne Mardle
Former World Matchplay finalist on Sky Sports

I really do believe this will be a 4-0, I really do.

Luke Humphries scoring will really put pressure on the few double opportunities that Gabriel Clemens will get.