Image source, Getty Images

A lot has been made about Tyson Fury's slimmed down look this week.

The Briton tipped the scales at a joint-career high weight of 19st 8lb for his last fight against Francis Ngannou - he also came in at that weight for his third meeting with Deontay Wilder.

There is no doubt that he is taking this fight a lot more seriously than the Ngannou one - there's a lot more at stake - but what can we draw from the loss of weight?

Oleksandr Usyk's promoter Alex Krassyuk claims that it's because Fury is nervous, that's unlikely to be the case.

It could be that Fury wants to be more active, lighter on his feet and needed to shed a bit of weight to make that possible.

Usyk weighed-in at 15st 11lb for both of his fights with Anthony Joshua and he was just 1lb lighter last time out against Daniel Dubois.

Fury has claimed this week that he is walking around at 19st, we'll see how true that is shortly.

Most of us are expecting Fury to try and bully Usyk at some point in the fight, leaning on the Ukrainian and making him carry his large frame in an attempt to tire him out.

Even if Fury weighs-in at 19st then he could still be at least 4st heavier than Usyk.

Seems smart for Fury to sacrifice a bit of weight to improve his mobility, right?

Image source, BBC Sport

The former heavyweight champions keep rolling in. Wladimir Klitschko is in the house.

Huge chants from the crowd as legendary boxer Klitschko makes his way to his seat.

Those chants being, “you big dosser.”

Image source, Getty Images

Swimming forms a key part of Oleksandr Usyk's training. According to his manager, Egis Klimas, Usyk swam 10km nonstop as preparation and was able to hold his breath for four minutes and 40 seconds.

Juggling and catching coins are Usyk’s staple party tricks, but they too signify the importance he places on shaping his cat-like reflexes.

The training and focus paid dividends against Anthony Joshua - Usyk’s resilience and fitness levels were on full show when he outclassed the Briton for most of the 24 rounds they shared.

Usyk came in at 15st 11lb for both fights – which he seemingly feels is his optimal weight having tipped the scales around the same mark against Daniel Dubois in August.

Joshua was 20lb heavier and then 23lb in the rematch.

“I kept saying that Joshua was just too big, but the size was matched by just how good Usyk is,” Tony Bellew says.

Still there are those who still question Usyk’s heavyweight credentials.

Bellew describes Usyk as a "novice heavyweight in some ways" having never been pushed to his "absolute limit".

For Bellew, however, Usyk’s superiority and ability to find an extra gear is key.

“Usyk ticked all the boxes in the second AJ fight,” Bellew says. “Going into round nine or 10, he is behind or it’s level. Then going into the championship rounds, Usyk just finds another level.”

Sam Harris
BBC Sport in Riyadh, Saudi Arabia

I mean, if there’s ever a walk-on song for a weigh-in… One of Kendrick’s strongest tracks dissing Drake is a pretty solid choice.

Kal Sajad
BBC Sport in Riyadh, Saudi Arabia

Image source, BBC Sport

A front row seat for the last undisputed heavyweight champion Lennox Lewis.

A tasty look back at the history between Tyson Fury and Oleksandr Usyk for you.

Kal Sajad
BBC Sport in Riyadh, Saudi Arabia

George Warren, son of promoter Frank, just came over and checked on the British press.

"You all alright - anything you need?", the CEO of Queensberry asked.

Not only is he a nice chap, Warren Jr is also the man credited with helping convince his dad and Matchroom's Eddie Hearn to bury the hatchet.

Sam Harris
BBC Sport in Riyadh, Saudi Arabia

I’ve just been in and around more of those Tyson Fury fans and they don’t think Oleksandr Usyk is a threat at all.

Sam (great name by the way) told me: “This happens inside seven rounds easily. Tyson’s got this, Usyk doesn’t stand a chance with his height.

“Then the world will know Fury is the greatest of all time!”

The live stream is under way so just click the 'Watch live' button at the top of this page and hey presto, you can see what is going on.

We know the sound isn't perfect but we are working on that.

• Avid Nyika v Michael Seitz - cruiserweight
• Sergey Kovalev v Robin Sirwan Safar - light-heavyweight
• Mark Chamberlain v Joshua Wahab - lightweight
• Moses Itauma v Ilja Mezencev - heavyweight
• Frank Sanchez v Agit Kabayel - heavyweight
• Joe Cordina v Anthony Cacace - IBF super-featherweight title
• Jai Opetaia v Mairis Breidis - IBF cruiserweight title
• Oleksandr Usyk v Tyson Fury - undisputed heavyweight championship

Kal Sajad
BBC Sport in Riyadh, Saudi Arabia

Image source, BBC Sport

Eddie Hearn really is a man of the people. Summoned over by British fans, he did not hesitate in going over.

He gets some grief sometimes, but I have never seen him refuse a photo request or autograph. He's the same with media, he is always the last man standing and makes sure he speaks to every outlet.

So, we get to see the fighters for one final time tonight before they get some much needed rest, steer clear of the media and focus in on tomorrow's mouthwatering contest.

We've been keeping a close eye on the weight of Oleksandr Usyk and Tyson Fury this week, they both fit quite neatly into their suits for yesterday's news conference, but what are your thoughts?

Fury claims he is walking around at 19st, slightly lighter than usual, but still a mammoth of a man.

Do you think Fury has made the right call to come in lighter?

It's tough to tell with Usyk but I think he looks a little heavier.

Could an extra few pounds slow the Ukrainian down and hold him back from using his slick footwork?

Get in touch using X, formerly known as Twitter, WhatsApp or via Text - all the details are above.

We're closing in on the start of the weigh-ins.

We are expecting it to begin in four minutes... but you know these things don't always go to plan.

You'll be able to watch live at the top of this very page.

Image source, Getty Images

BBC Sport looks Oleksandr Usyk’s transition from the world’s best cruiserweight to a unified heavyweight champion who dethroned Anthony Joshua in 2022, before winning the rematch just months after defending his country against the Russian invasion.

After defending his undisputed cruiserweight crown against Tony Bellew in November 2018, Usyk – with nothing left to achieve in the division – jumped to heavyweight.

For all his natural talent and boxing prowess though, there were question marks over whether he had the size to compete with boxing’s big boys. Only Evander Holyfield and Briton David Haye had won world titles in both divisions.

But with a strong focus on strength and conditioning, swimming and full-body workouts, Usyk steadily built into the weight.

Read more about Oleksandr Usyk's heavyweight transformation here.

Sam Harris
BBC Sport in Riyadh, Saudi Arabia

The crowd erupts and it’s one of the loudest atmospheres we’ve had all week. In fairness Kal’s “ba, ba, baaa” was pretty impressive too…

Kal Sajad
BBC Sport in Riyadh, Saudi Arabia

You know the Brits are here - Neil Diamond's 'Sweet Caroline' is being belted out.

Image source, Getty Images

Yesterday we brought you the news conference and, if you missed it, you can simply follow this link to go back and re-watch it.

The content of the conference may not have been groundbreaking but the face-off was interesting and there's plenty of other content throughout the live text to whet your appetite for the weekend.