Oleksandr Usyk will only be able to call himself undisputed champion for two weeks after beating Tyson Fury

After defeating Tyson Fury, Oleksandr Usyk is now the undisputed heavyweight world champion.

There hasn't been one of those since 2004, as the Ukrainian boxer now holds the WBC, WBO, WBA and IBF titles, but his status is undisputed champion may only last a little while longer.

Usyk defeated Fury by split decision in Riyadh in a dramatic clash, and this is unlikely to be the final time the two step into the ring together as Fury confirmed that he wants to trigger a rematch clause and fight again.

People watching reckon they think they know why Fury lost the fight, as viewers complained that he was 'too busy showboating' in the early stages and acting like he was going to be the winner.

Oleksandr Usyk defeated Tyson Fury to become undisputed heavyweight champion, but he might not have that title for long. (Richard Pelham/Getty Images)

The defeated boxer said he thought he 'won that fight', and claimed that Usyk was given the victory because people were 'siding with the country at war', a reference to Russia's brutal invasion of Ukraine which has been going on for over two years now.

If and when they do fight, it likely won't be another clash to determine the undisputed heavyweight champion.

Barring injury or delay, October would appear to be when a possible rematch between Usyk and Fury would occur, and if all that comes to pass there'll be one belt that's probably not there to be won.

That's because boxing journalist Dan Rafael has noted that Usyk is likely to have to vacate his IBF title so it can be fought out between Filip Hrgovic and Daniel Dubois on 1 June.

Dubois was defeated by Usyk last year when he was the mandatory challenger to Usyk, but afterwards the next challenger was Hrgovic.

Usyk instead took on the challenge from Tyson Fury, meaning that he will likely have to give up the IBF title and it will be on the line when Dubois and Hrgovic fight.

Usyk is expected to have to give up the IBF belt after facing Fury instead of the title's mandatory challenger Filip Hrgovic. (Richard Pelham/Getty Images)

Something similar happened to Fury back in 2015 when he defeated Wladimir Klitschko to claim the IBF, WBO and WBA titles.

Vyacheslav Glazkov had been scheduled as a mandatory challenger, but Fury instead opted a rematch with Klitschko that never actually materialised, which meant he held onto the IBF belt for less than two weeks.

Meanwhile, the winner of the fight between Dubois and Hrgovic will next be expected to fight Anthony Joshua in September according to talkSPORT.

Basically, in the time between now and Usyk and Fury stepping into the ring again, Usyk is expected to have to give up his IBF title, have it fought over by Dubois and Hrgovic, and have it fought over by the winner of that and Joshua.

This all seems quite complicated for a sport centred around two people knocking seven shades of s**t out of each other.