IBF, IBO, WBA heavyweight champion Anthony Joshua (19-0, 19 KOs) wants the biggest fights possible - and he's not ducking any of the big names at the weight.
In April, a record crowd of 90,000 were present at Wembley in London to watch Joshua stop former division ruler Wladimir Klitschko in eleven rounds to unify the three belts around his waist.
There is a rematch clause and the IBF has given Joshua permission to postpone his mandatory obligation to face Klitschko for a second time - if the fight takes place by December 2.
Klitschko has not officially committed to the rematch. If he decides to retire, then Joshua will be forced to make a mandatory defense against Kubrat Pulev.
Joshua wants to unify the titles with WBC champion Deontay Wilder and WBO champion Joseph Parker. And Wilder also wants a rematch with Dillian Whyte - which is a very marketable fight in the UK.
Joshua's promoter, Eddie Hearn, admits that it's going to be tough to maintain all of the belts and his fighter could very well vacate a title - if that particular title is standing in the way of a major fight or forcing him to accept a fight that nobody wants to see.
"At some point you might have to vacate a belt, if it's a fight that no one wants to see, if it's a fight that's not for the benefit of the fans. If it's a fight that isn't for the benefit of Anthony Joshua's career in terms of where he wants to get to, maybe. Again it's going to be very difficult to maintain all the belts," said Hearn to Sky Sports.
"He also wants unification fights, he wants to fight Joseph Parker, he wants to fight Deontay Wilder. But the plan with Anthony Joshua is not two or three fights, it's eight to 10 years. We've got to go through everybody. We're urging all the heavyweights to keep going, to call him out.
"There's fights in the UK. Dillian Whyte is a fight that Anthony Joshua wants to see again. Hopefully we can get Dillian Whyte a shot at the championship before. We've got to line these guys up, third, fourth, fifth fight, because we're going to need them."