Mark Selby looks determined to not let Jak Jones off the hook.

He has a laser-focused look about him as he gets in amongst the balls and takes another frame with a break of 78, his highest of the match so far.

It looks like we'll have time for a ninth frame.

Jak Jones gets a frame on the board to a huge cheer from the crowd.

That looked like another frame that was going to go Mark Selby's way but the Welshman constructs a break of 34 to finally get over the line in own.

Michael Emons
BBC Sport at the Crucible

Four debutants were making their first appearances at the Crucible and three of them are now out with the fourth very likely to join them heading for the exit door later today.

Antoni Kowalski, the 22-year-old who was the first from Poland to qualify for the finals, lost 10-4 to Mark Williams on Sunday.

English teenager Stan Moody, 19, lost 10-7 to Kyren Wilson the next day and now another Yorkshireman, 20-year-old Liam Pullen, is out after that 10-6 loss to Chris Wakelin.

The only debutant left is China's He Guoqiang but it will be the story of the tournament if he can recover from 7-2 down against Ronnie O'Sullivan.

That's 12 out of 12 seeds through. We just need O'Sullivan, Mark Selby, Si Jiahui and Neil Robertson to complete the set and make a bit of Crucible history of all 16 seeds progressing.

The partition has gones albeit Jak Jones may wish it hadn't.

Mark Selby rattles off another frame by potting a long yellow and putting the Welshman, who needs snookers, in one himself.

Jak Jones is well and truly having one. He goes in off while playing safe on the yellow and now finds himself snookered behind the black while 25 points down.

The Welshman brilliantly gets out of that but Selby is still in charge of this tactical exchange.

There are 27 points remaining.

Image source, BBC Sport

Chris Wakelin pulls out a cross double.

Brilliant from the world number 13, who then polishes off a few more balls to give himself an unassailable advantage and a very good first-round victory.

He's just had too much nous for the 20-year-old debutant.

That's every single seed through so far.

Jak Jones gets himself back into the sixth frame before running out of position.

He then ends up snookered on the final red and gives up a free ball. Selby knocks in the brown but then misses a pink while playing with loads of right-hand side.

Jones rolls in a straightforward red but flunks the black off its spot. Wow.

Liam Pullen has clearly decided it's all out attack from here.

But then he rattles the jaws with a red to the bottom left corner it stays out and tracks across the table to end up giving Chris Wakelin a look at a pot into the opposite side.

Wakelin enjoys a run of 62 before failing to drop in a black off its spot. That would have been the match.

Jak Jones rattles a blue in the bottom right corner pocket. This is becoming hard to watch for his fans.

Mark Selby is in the process of breaking the back of this match here. Very few players can overturn this sort of deficit against the four-time world champion.

Selby makes 41 before missing a pink to the left corner. He's missed a few balls today like that but is yet to be punished.

Joe Perry
Former World Championship semi-finalist on BBC iPlayer

The Crucible is the best place to play and at times it can also be the worst. All eyes are on you and there is no escape out there.

When you are struggling it gets harder and harder. We all know how good Jak is, he got to the final here but it has not been his day so far.

It's no-miss snooker time for Liam Pullen and he reponds with a superb century break.

If the 20-year-old is to bow out in this round he will remember that stylish run of 121.

For now though, he is still in there and fighting.

Miles off. Jak Jones misses a tough red down the bottom cushion and hands another frame to Mark Selby.

This match is in danger of really getting messy for him.

Mark Selby establishes a 51-point lead and then tucks Jak Jones up behind the pink. The Welshman is in all sorts of bother here.

The 2024 finalist plays off three cushions and leaves things awkard for Selby after clipping a red but the 25-time ranking event winner picks out a red to middle.

However, when he fails to knock in a much easier pink, Jones gets back to the table.

Dearie me. Liam Pullen goes in off and gifts Chris Wakelin that chance to rack up some serious points in frame 14.

The Scottish Open champion racks up 47 points in addition to the 21 he already had before playing safe and Pullen nods to the referee to concede.

Michael Emons
BBC Sport at the Crucible

Image source, Michael Emons

If you head off out of the Crucible, through Tudor Square and to Winter Garden, you will see the BBC TV studio with Hazel and the team and a full-size snooker table to impress your mates on with a series of fun challenges.

You can also pick up some souvenirs. You can't miss the "Welsh Potting Machine" T-shirts, which is Mark Williams' nickname, although Welsh snooker fans could be wearing them in support for Jak Jones today too.

But there are plenty of other T-shirts, jumpers, snooker accessories, keyrings, pens, coasters, hats, mugs and much, much more. Basically you can tick off your Christmas present list eight months early.

Image source, Michael Emons

Image source, Michael Emons

Image source, BBC Sport

Jak Jones does not have too many points to play with but when he leaves a red near the top left corner it matters not.

Mark Selby does not miss those and makes sure he does what is required to go 4-0 up. The perfect start for the four-time champion, who has dominated in every area of the game so far.

The table is in a bit of a mess in this fourth frame but Jak Jones gets in and then misses a smelly pink to the bottom right corner.

Mark Selby reacts by crafting a half century but then misses frame ball to the same pocket.

The balls are not exactly favouring a counter from Jones.