Shelly Finkel, co-manager of former WBC heavyweight champion Deontay Wilder, says a fight with Anthony Joshua would be a major event - win or lose in the upcoming rematch with Oleksandr Usyk.

Joshua, who last September was outboxed by Usyk over twelve rounds, will attempt to reclaim the IBF, IBO, WBA, WBO heavyweight belts on August 20 in Saudi Arabia.

"I believe that fight is enormous even if he loses to Usyk," Finkel told The Sun. 

Wilder has been out of the ring since last November, when he suffered a knockout loss in the eleventh round of his trilogy fight with WBC champion Tyson Fury.

Wilder, who was stopped in his last two outings at the hands of Fury, is expected to return to the ring before the end of the year.

Fury is still the frontrunner to face the Usyk vs. Joshua winner.

Following his April knockout of mandatory challenger Dillian Whyte, Fury vowed to retire from the sport.

Finkel believes the right amount of money, especially from Saudi Arabia, would bring Fury to the table to fight the Usyk-Joshua winner in an undisputed fight for all of the titles. 

"I don't know anyone else's numbers or money, it's not my business but I heard that the Saudis put up a lot of money for Joshua to fight Usyk over there," Finkel said.

"I don't believe Joshua - Usyk now is as big as Fury - Usyk is. And, being for all the belts, the Saudis may step up. Who knows? So there's a lot of moving pieces but what I do know is there's four big names at this point and that is Fury, Usyk, Joshua and Deontay. And this month, two of those guys will be fighting and that will clarify what the future is."