Stacey Copeland
Retired boxer on BBC Radio 5 Live

Nobody is able to make space. They are tieing eachother, smothering eachother's work. The crowd are loving every minute of this and what an atmosphere it is in here.

Williamson is looking for that overhand right as he steps in with it. Simpson lands a solid right of his own as neither wants to take a step back from centre ring.

Williamson does land a right over the top with Simpson looking a little messy but both men smother each other's work.

You can see the difference in their physiques with Simpson tall and wiry, and Williamson shorter but more muscle bound.

Simpson lands a lovely straight left before connecting with another as Williamson's chin comes up.

That's Simpson's round.

Image source, Boxxer

They touch gloves after receiving their final instructions from the referee and away we go.

Both look to take centre ring with plenty of fidgeting going on but no one throwing anything of any note so far.

Callum Simpson and Troy Williamson in numbers.

Expect fireworks tonight.

We all love a good knockout!

Here are the best of Callum Simpson's 13 out of his 18 wins.

Callum Simpson is kitted out in a lovely sparkling black and gold robe as both men are now in the ring.

Image source, Boxxer

A 72% knockout rate for Callum Simpson and 71% for Troy Williamson.

I'd say the chance of a KO tonight is pretty high!

Huge cheers for Yorkshire's Callum Simpson.

Chants of "Yorkshire, Yorkshire, Yorkshire" rings around the arena.

Class.

For those of you who care, Callum Simpson tipped the scales at 11st 13lb 11oz (75.9kg) while Troy Williamson came in slightly lighter at 11st 13lb 6oz (75.8kg).

Can't imagine there's much we can take from that.

Image source, Boxxer

Right then, time for the ringwalks and it's Troy Williamson first to make the walk in Leeds.

A Mike Tyson-obsessed kid who did not lace the gloves properly until 17, Troy Williamson racked up 68 amateur bouts, boxed for Team GB and won medals on the international circuit.

As a professional, he claimed the prestigious British title at light-middleweight, but he says his career has "stalled" after four defeats in his past six bouts.

He puts his recent bad run down to the way he says his career has been managed.

"I don't believe I've been promoted properly. I've never had a solid promoter, even when I won the British title," he said.

"I put it all down to being in the North East, in a small town called Darlington. I just don't think they recognise the North East when we have some tremendous boxers."

Image source, Boxxer

Callum Simpson is never one to shy away from a fight and here he is saying he'll go to"war" with Troy Williamson.

"[Williamson] can have it any way he wants," said Simpson.

"He's been wearing a hat all week saying 'war' on it. If he wants a war, we will have a war. Whatever he wants, he can get it.

"But I am going to be winning no matter what. I'm not coming just to defend but to dominate. I want to show that I'm above this level."

Seems they went a bit early with Sweet Caroline.

Ben Shalom
Boxxer promoter

When will we see Chris Billam-Smith fighting again and will it be on the BBC?

"Chris is still with Boxxer. He was offered a fight this year against Roman Fress but the commercials didn't really make sense. Hopefully in the new year [he can fight].

Will there be a world title fight be shown live on the BBC with the current agreement you have?

"Lauren Price will be defending her three titles early in the new year on Boxxer."

It's rare you see Callum Simpson without a smile on his face but he's gone through the toughest of times.

Here he is talking about his younger sister Lily-Rae, who sadly passed away in a road accident in Greece just 16 months ago.

Sweet Caroline is being belted out in Leeds so you know what that means, ringwalks are coming very soon!

Ben Shalom
Boxxer promoter

If you could steal a skill from a fellow promoter for yourself, what would you take?

"I would take Mick Hennessy's ability to spot talent."

What do you do on a day off?

"We don't have days off most of the time, but I'm with the family watching some football."