Usyk currently holds the 'mandatory challenger' position for Anthony Joshua's WBO world heavyweight title and expects to fight for the belt if he beats Chisora.

Image source, .

But Derek Chisora has some football support too. Here's a message from ex-England and Liverpool defender Jamie Carragher.

Oleksandr Usyk got all the gold available at cruiserweight level and is hoping to get some heavyweight gold in the future. He won't get that on this trip, but has something to take home with him - a West Ham shirt, courtesy of fellow Ukrainian Andriy Yarmolenko, a winger with the Hammers.

“Oleksandr! Welcome to London! I wish you good luck in your fight!” said Yarmolenko . "All Ukrainians will be supporting you."

Usyk received a package of claret and blue goodies at his hotel.

“We have to support each other,” said Usyk. "He is a Ukrainian and I am a Ukrainian too. It doesn’t matter where we are. At the moment we are far away from our country, Andriy is playing for a London team and I am fighting in London too. This is totally normal that we have to support each other."

Image source, Matchroom Boxing

At the weigh-in Chisora was more than 18st, almost three stone more than his opponent.

Image source, Matchroom Boxing

We've only got 110 people in Wembley Arena, yet we've still got 'Sweet Caroline' blaring out with videos of people screaming it in the past.

You know it's a big night when Sweet Caroline is heard, even if there's hardly anyone there to sing it live.

Dreaming of the days fans can get back and watch sport in this country.

David Haye
Former world heavyweight champion and Chisora's manager

We are not going to have a boxing match. Derek knows he has to take it into a dog fight. No feeling out or getting a feel for range. Get on his chest and bombs from the first round.

It's been two years of us working together now. The first year it was a lot of new programmes, a new way of living his life, like where he sleeps, what food he eats and the strength and conditioning. It's taken a year and a half until he's said 'OK, I'll do exactly what you guys want'.

We are going to see a mega upset. Not one news outlet or expert doesn't have Usyk in their top 10 pound-for-pound fighters on the planet. I need them to remember that when Derek knocks this guy out.

Usyk will not be able to deal with the type of pressure and heat that Chisora brings to the table. We know Derek can absorb punishment. How much punishment can Usyk take?

You want another slightly scary video from Oleksandr Usyk? You're in luck. Scary, even when just going for a run on the beach.

We're live for the main event on BBC Radio 5 Live - so press the play button at the top to listen to the best in the business - Mike Costello and Steve Bunce, with Dillian Whyte

But Derek Chisora then showed he could take a decent punch to the stomach too.

The social media accounts of both fighters have certainly been entertaining in the last week.

Check out this video of Usyk involved in some training torture, while sounding like a zombie screaming out 'Derekkkk, I'm coming for you'.

Don't have nightmares.

Mike Costello
BBC Radio 5 Live commentator

Image source, .

It really is the last chance. The queue is just getting too long for Derek Chisora to get back to anywhere near the front of it if he loses.

This fight is absolutely crucial in the career of both men for very different reasons.

I can't get away from the class of Usyk and the sheer brilliance we saw at cruiserweight.

He can make the step up, if not at the very highest level of the heavyweight division. He has enough to beat Chisora and he might get on top early on.

Next up it's the main event - Oleksandr Usyk versus Derek Chisora.

We said it was hard to call and we have a split decision. The first judge has it 118-110 for Kambosos Jr, the second judge, Phil Edwards from England, calls it 115-114 for Selby but the third judge says Kambosos Jr by 116-112.

The Australian now becomes the mandatory challenger for the IBF lightweight title, currently held by American Teofimo Lopez.

Here are the scores...

George Kambosos Jr instantly raises his arms. He thinks he has done enough. A more quieter movement from Selby. He doesn't look confident. We will see.

A warning for Lee Selby for hitting on the back of the head.

A big right hand lands from George Kambosos Jr, but Selby's chin is strong enough to take it.

Three minutes to go. What has Lee Selby got left?