WBA, WBO, IBO and IBF heavyweight champion Anthony Joshua (21-0, 20 KOs) wants to get in the ring with WBC champion Deontay Wilder (40-0, 39 KOs).
But he wants the contest to take place on UK soil, according to his promoter Eddie Hearn of Matchroom Sport.
Joshua vs. Wilder is arguably the biggest fight to be made in the sport.
Hearn met with Joshua a few days ago, and the boxer made it clear that he wants to fight Wilder on UK soil.
Joshua's last three fights drew massive crowds, with 90,000 at his April 2017 bout with Wladimir Klitschko in Wembley, 76,000 for the October 2017 bout with Carlos Takam at Principality, and the same number for the March 2018 unification with Joseph Parker at Principality.
However, Hearn admits the contest would make more money if the event was staged in the United States.
Wilder's handler's have offered Joshua a guarantee of $50 million to make the fight on American soil.
“I met with Anthony and his coach Rob McCracken on Tuesday to discuss our next move. AJ feels like he deserves it to the UK fans who have supported him up until now to make sure it happens at home," Hearn told BoxingScene.com's Declan Taylor.
“It gets to the stage where we are asking ‘Why are we looking to do this in the US?’ Because it’s more money – but is that really important?
“At the moment the fight makes more money in America but he feels like he owes it to the UK fans to do it at home.”
On Thursday, Hearn staged a press conference in New York City to officially announce an eight-year, $1 billion deal with global streaming company Perform Group.
Hearn's company will now stage 16 shows in the United States every year, while Perform Group will stream 16 of his UK cards live in the US - through the DAZN streaming service.
“This is a truly historic moment for boxing and a very proud moment for me, my family and everyone at Matchroom," Hearn said.