This is a six-rounder and Clarke towers over Jake Darnell and is in complete control in the first.

Fight night on Saturday, big match in Sunday League on Sunday...

Something tells me Jake Darnell might not be able to play for Armfield FC tomorrow.

Frazer Clarke's opponent Jake Darnell was hoping to be at the AO Arena in Manchester in the seats, he ended up with the closest view of the action possible.

In an interview with IFL TV earlier this week, Darnell said: "I was at the [Amir Khan vs Kell Brook] public workout on Wednesday, asked my manager, ‘Can you get a ticket?’

"Got a call Thursday, ‘I’ve got you a ticket, but you’ve gotta fight Frazer.’ I’m like, ‘Let’s go and have it.’”

In 2016, Frazer Clarke chose to gamble. The big heavyweight from Burton went to Rio de Janeiro, but only as a sparring partner, having missed out on the Olympics in Brazil.

It left him with a difficult decision to make. Should he turn professional then, or stay with the GB Boxing programme and try to avoid history repeating itself at the Tokyo Games?

The question, he explained, was: "Do you want to go and do things the hard way?

"You'll get there because you're a good fighter, you know what you're doing. You might change your life. Then I got asked, do you want to change your kids' life, your mum and dad's life, your brother and sister's life, their kids' lives? In that case, you stay 'til the Olympics, you get a medal and you work hard."

Clarke, 30, added: "I've done exactly that."

The platform an Olympic medal gives a boxer, particularly a heavyweight, can be transformative. But Clarke had to commit years of work to that dream, when nothing was certain.

Clarke qualified for the Tokyo Olympics and secured a bronze medal, signing a professional deal on his return. His first professional bout is set for the undercard of Amir Khan v Kell Brook - the gamble has paid off.

• Read the rest of our feature on Frazer Clarke here

Next up in Manchester is the professional debut of heavyweight Frazer Clarke, who picked up a bronze medal in the Tokyo Olympics last summer.

The 30-year-old is another British addition to a thrilling heavyweight division and his opponent today is another debutant, Blackpool's Jake Darnell.

Image source, Getty Images

Coral Barry
BBC Sport combat sports editor

It's hard to pick a winner in this one. I've gone back and forth all week.

In their primes I would have leant towards Amir Khan, but only just. In the current climate, I favour Khan but only because Kell Brook's recent eye socket injuries. They have really knocked the stuffing out of a fighter who thrives in the pocket. But then there is the question of Khan's chin?

The fact both men are vulnerable makes for such an intriguing, unpredictable fight.

I would imagine Khan will target Brook's face and body, with the belief Brook had a harder time with the weight cut.

For Brook, he has to take the fight to Khan early and draw him in. The question is whether he can manage that? I wouldn't rule out a barnstormer either which might come down to who lands big first.

Matchroom Boxing promoter Eddie Hearn: "Probably the last rodeo for both of them. I wish them the best but my money is on Kell Brook for this one. He's wanted the fight more over the years and looking at him in the gym he has trained harder."

British welterweight Conor Benn: "Khan always bring the action. Everyone knows he's vulnerable and everyone loves a bit of vulnerability - that's why I've always watched Amir Khan. Are Kell Brook's finishing skills still there? Is his accuracy and timing still there? I don't know."

Boxxer promoter Ben Shalom: "It's intriguing. It could go either way. That's what makes it exciting. I just can't call it."

Former WBA lightweight champion Anthony Crolla: "It's such a tough fight to call with so many questions - I keep changing my mind daily. Who has got more left? How does the weight affect Kell? Can he use that unbelievable timing to make Amir walk on to a shot?

"If it goes past four rounds I'm just sliding towards Amir, but there's a great chance Kell could land inside four. It's so hard to judge and that's what makes it hard to predict. Kell looked in unbelievable shape and has been in camp since last summer. As I'm talking now, I'm changing my mind and leaning towards Brook."

Teenager Adam Azim gained his third win as a professional in the lightweight category and looked great doing so...

This is the fight Kell Brook has wanted for the last decade. Now he gets his chance to back up all the talk and prove he is the better man.

Here he was arriving at the AO Arena in Manchester not long ago.

Feel free to get involved and send us your thoughts and predictions on tonight's action. Tweet us using #bbcboxing and we will stick the best messages in this page throughout the evening.

We're expecting ring walks at about 10pm ish, so before then have a listen to our preview on BBC Radio 5 Live.

It's a hard one to call this one, so let's try to read the room with a quick vote.

If you think Amir Khan is going to win then hit thumbs up, if Kell Brook is your man then press the thumbs down icon.

So, what's this feud all about?

Kell Brook and Amir Khan sat down with BBC Sport to discuss each other's strengths and weaknesses before their highly-anticipated fight.

Hello and welcome along to BBC Sport's coverage of the huge grudge fight between Amir Khan and Kell Brook.

I'm Michael Emons and it is my pleasure to be talking you through tonight's action.

It's been a long time coming, but it's going to be a good one.

They have been two of British boxing's biggest stars over the past 10-15 years and now finally they meet in the ring.

Amir Khan and Kell Brook, both former world champions, have been involved in one of the longest-running feuds in the sport and have not hidden their dislike for each other.

This fight could, and maybe should have, happened years ago but better late than never and tonight could be a truly incredible night of boxing.

Image source, Getty Images