Image source, Getty Images

American Thomas Taylor has been selected to officiate the historic light-heavyweight bout.

Taylor has overseen 673 fights and was recently in charge when heavyweight rivals Andy Ruiz and Jarrell Miller fought to a draw on the Riyadh Season card in Los Angeles in August.

The three judges at ringside are American Glenn Feldman, Spain's Manuel Oliver Palomo and Pawel Kardyni of Poland.

Palomo was one of the judges back in May when Oleksandr Usyk beat Tyson Fury by split decision, scoring 115-112 in favour of the Ukrainian.

Kardyni was a judge for Bivol's most recent fight when he beat Malik Zinad in the sixth round.

British heavyweight champion Fabio Wardley: "I am edging toward Bivol but this is probably one of the hardest fights to predict in boxing at the moment. It's a real pick 'em fight with two men with completely different styles. Beterbiev is a destroyer who can clean through everyone. Bivol has great power but is such a clean and precise boxer.

"It's a question of who can enforce their style best on the night and make the impact."

Heavyweight Frazer Clarke: "I keep changing my mind. I've been saying Beterbiev the whole time but I now think Bivol could take this one. It's a world class 50/50, though."

Retired world champion Darren Barker: "I would have Beterbiev as the favourite. When you have that power, he knocks people down with jabs. How can you not have him favourite? Not massive, but at any point he could switch Bivol's lights out. But I am going Bivol in a unanimous decision but a very close fight. What I mean by that is the rounds will be enough. I am going with the matador in this fight but I wouldn't put my house on it."

Who is that in the corner of the ring?

It's Missy Elliott, of course.

Ciara has played her part and now it's over to Busta Rhymes.

Remember him?

We're waiting for the main event to get under way. Please enjoy these customary backstage pictures.

Image source, Matchroom

Image source, Matchroom

It's music time.

Ciara, blast from the past, is first up with 'Like a Boy'.

It's a medley.

Retired world champion & boxing coach Anthony Crolla: "You can tell what a good fight it is because so many people are finding it hard to pick a winner, and I'm one of them. If I'm really pushed, I just don't think Bivol will have the firepower to keep Beterbiev off. I see Beterbiev will wear him down and maybe get a stoppage around the ninth or 10th round.

"But I also wouldn't be surprised if we see a very disciplined performance from Bivol where he outboxes Beterbiev, hit him and move him, similar to how he did against Saul 'Canelo' Alvarez."

WBC lightweight champion Skye Nicolson: "It's the typical brawler v boxer, and I have to back the boxer. I find it hard to see Bivol being caught in a situation he doesn't want to be in. He's so good at controlling the distance and pace of the fight.

"But if anyone can do it, it's Beterbiev. My heart says Bivol."

Retired world champion Barry Jones: "Beterbiev has to be a slight favourite. He's knocked out punchers , he's knocked out boxers and he can knock you out in the first round or the 12th. There is no round, second or minute when you're really truly safe with him.

"But I will still go with Bivol. I just have a feeling that his intelligence, patience, discipline and calmness of approach might just be enough to ride the dangerous moments and get him through in a close decision.

"Bivol might have to get off the floor a couple of times but I think he could have an early enough lead to sneak home."

Jimmy Hellon X: "Artur 'I can't believe it's not' Beterbiev."

We've got a new jazzed up version of our vote running this week. How do you like it?

As always, you can find it in any of the fight week previews on our boxing index. I'll make it nice an easy for you, though, just click here, scroll down and you can't miss it.

Recently the votes have been pretty one-sided - that was a big error when Daniel Dubois stunned Anthony Joshua - but this one is tight.

The Beterbiev-Bivol ringwalk is expected at about 23:15 BST, although the night has been well ahead of schedule so we'll just have to see if that's the case.

Before we get the two light-heavyweight champions in the ring, we're set for a musical interlude - it's becoming commonplace during these cards in Saudi Arabia.

American rapper Busta Rhymes is going to be on stage shortly.

We've heard from Queensberry promoter Frank Warren, so now it's time to give the same treatment to Matchroom boss Eddie Hearn.

Steve Bunce and Hearn talk through the card with the promoter giving his thoughts on how they might play out.

Skye Nicolson and Jai Opetaia, both Matchroom-promoted fighters, also join the pod.

Listen to all episodes here.

We've flown through this card. Only the main event still to go.

Clearly you're all terrified of Marvin Hagler - so let's switch this up.

Shortly, we will see one of Artur Beterbiev or Dmitry Bivol crowned as the undisputed light-heavyweight champion.

One thing I've noticed is that neither of them have a nickname, though.

Here's your chance to come up with one.

Get in touch using the details above.

Nicola Adams
Two-time Olympic champion and former world champion on DAZN

I want to see him (Fabio Wardley) have another [fight] that's not too far out of his league yet [before a world title fight].

Congratulations to those of you who called it!

A comprehensive win for Fabio Wardley.

It's a shame we didn't get a 12 round battle like seven months ago, but that was punch perfect from the British heavyweight champion.

Image source, Getty Images

Darren Barker
Former world middleweight champion on DAZN

The ones that hit you on the chin are the ones that knock you out but those ones on the temple make your legs go and you can't get them back.