Tyson Fury's co-promoter, Frank Warren, says the Saudis would have to come up with a lot of money to secure the rights to a potential undisputed showdown with Oleksandr Usyk.

The Saudi Sports Ministry paid a significant sum of money for the rights to last Saturday's rematch between Usyk and Anthony Joshua.

Before a packed crowd in Jeddah, Usyk retained the IBF, IBO, WBA, WBO heavyweight titles with a split decision win over Joshua.

The Saudis have tremendous interest in securing the rights to Fury-Usyk.

Warren feels strongly that a showdown between Fury and Usyk is a bigger encounter than last weekend's title fight.

“We’ve had preliminary discussions a couple of months ago and the challenge is going to be meeting the financial expectations of both guys,” Warren said to The Mirror.

“It’s going to be all about money. At the end of the day, it’s going to be about making it worthwhile for the guys. They’ve seen the money offered to the likes of golfers and so forth. This is not golf, this is much more dangerous and this is a unique sporting event, it’s sporting history.

“For them, they’ve just done this fight, but this is the ultimate prize in boxing, the undisputed heavyweight championship being fought for. It has to be much bigger because you’ve got two undefeated fighters and the first time, the four belts will be on the line.

“It’s a unique situation and what adds to that is that they are both undefeated, which is quite unusual. And they’re undefeated guys who’ve been around a long time, they’re in their 30s. They’re not like two young kids coming up, these are guys who’ve been through the ringer, have done everything.”

Fury was last seen in action back in April, when he retained the WBC world title with a sixth round knockout of Dillian Whyte.

A date of December 17 is being thrown around as a potential target for the fight, in Saudi Arabia.

Warren would like to reach a two-fight agreement with Usyk’s team, which would allow for a second fight to take place in the UK.

“The problem for us is we can’t put it on in the UK in winter,” Warren said. “We would have to wait until the end of April, May next year and I’d much rather get the thing on. There’s a lot of interest in Saudi. They have literally put their marker in the sand and said they are in big-time boxing. Well, there’s nothing bigger than this out there in the world of boxing.”