Eddie Hearn reveals how much it will cost to let Fury fight Usyk next
As it stands, Joshua will be bidding to become a three-time unified heavyweight champion against Usyk next year.
Joshua surrendered the WBA, IBF, WBO and IBO titles to Usyk at the Tottenham Hotspur Stadium in September via unanimous decision.
Since his defeat, there has been talk about Tyson Fury stepping ahead of Joshua to face Usyk in a bid to crown the first undisputed heavyweight champion since Lennox Lewis in 1999.
"Seven figures? A million? If you want to get him not to fight Oleksandr Usyk you have to times that by 40... At the moment there is communication between the two teams to say is it something, and the answer is AJ has not been spoken to about this yet," Hearn said.
Fury is currently embarking on a UK Tour to celebrate his most recent victory over American rival Deontay Wilder.
As it stands, Fury will be forced to take on his mandatory challenger next although it is unknown as to whether it will be Dillian Whyte - the current interim champion - after taking the WBC to an arbitration court.