Veteran promoter Frank Warren has accused unified world heavyweight champion Anthony Joshua of talking "rubbish" with regards to a potential fight with Deontay Wilder or Tyson Fury.

In fact, Warren believes that the immediate future has already been mapped out for each of the division's top fighters.

WBA, WBO and IBF champion Joshua (23-1, 21 KOs) recently revealed that he wants to attempt to become an undisputed champion this year by fighting the winner of the February 22 WBC heavyweight title clash between Deontay Wilder and Tyson Fury.

Joshua also insisted that talks had already taken place regarding such a fight.

Reports suggest that Wilder and Fury have a clause in their rematch contract for a trilogy fight - but Joshua seems confident that he can throw a "curveball" into those plans.

Warren was quick to dismiss this suggestion though. Per mirror.co.uk, the 67-year-old emphatically blasted Joshua's claims.

"I can categorically say Anthony Joshua didn't meet with any of Deontay Wilder's team. It's just all rubbish.

"The bottom line is, they can have 10,000 meetings, but all three fighters are already under contract," Warren confirmed.

"Tyson Fury, Wilder, Joshua- they all have their 2020 mapped out. Joshua has two mandatories or he vacates a title.

"Tyson and Wilder fight on 22 February and the loser has the right to invoke a trilogy fight. That's in their contracts."

Joshua appears set for an early-summer bout with his IBF mandatory challenger Kubrat Pulev - and, if successful, should then go on to face WBO number one contender Oleksandr Usyk.

However, as Warren states, the option would be open for Joshua to vacate his WBO championship rather than face Usyk - in order to pursue a bout with the winner of Wilder vs Fury.

There is even the outside chance that the WBO may grant Joshua a special dispensation to allow him to postpone a defence against Usyk - in the event that a bout to crown an undisputed heavyweight champion can be negotiated.

Warren himself even acknowledged this possibility but argued that it could prove too costly to turn into reality.

"Can things change? Of course, but it'll be expensive to do that...I mean really expensive. Whatever this fight makes, Joshua will have to match it to get the loser to step aside.

"That will be millions upon millions of pounds...But to talk now all glib about a ‘curve-ball offer’ is rubbish. Joshua knows full well he's talking nonsense. Is he trying to con the public?"

The fact is that the contract for Deontay Wilder vs Tyson Fury 2 does contain a rematch clause.

The likelihood of that clause being invoked, however, very much depends upon the outcome of their upcoming fight.

In the event that the bout has a conclusive ending, then one would have to wonder as to how much interest there would be in a third fight.

Anthony Joshua's chances of unifying the heavyweight division in 2020 become far greater if a clear winner emerges from the Wilder Vs Fury showdown in Las Vegas.