Unified heavyweight champion Anthony Joshua will make his American boxing debut when he defends his WBA, IBF, WBO and IBO titles against Jarrell Miller at Madison Square Garden in New York on June 1.
Joshua has won all of those previous bouts, 21 by knockout.
His last five fights have been in stadiums, with nearly 400,000 spectators attending in total. The most high profile was against Wladimir Klitschko in front of 90,000 fans at Wembley Stadium in April 2017.
But Joshua has been increasingly aware that he needs to fight in the United States to raise his global profile.
Miller, who is also undefeated after winning 23 of his 24 fights, was born in New York.
Joshua is looking to unify the heavyweight belts but negotiations broke down last year with WBC titleholder Deontay Wilder, who ended up fighting Tyson Fury in December. They fought to a split decision draw and will take part in a rematch in the coming months.
Eddie Hearn, who promotes Joshua, is concerned with the level of risk involved in the contest.
"It is a risky affair, in that respect, because he is used to his home comforts - 90,000 at Wembley and 80,000 at the Principality Stadium a couple of times each. Now he goes to the Mecca of boxing, the iconic Madison Square Garden, where the great heavyweights have performed - Ali, Frazier, Louis, Marciano, Tyson," Hearn told Sky Sports.
"It is a major moment for his career. It has probably come earlier than we expected but he goes there on June 1, and it will be a major statement to the world. It is a tough fight but also a new experience. "He is going into Miller's backyard. Miller is from Brooklyn. He is going to have big support, and he has a big mouth! They already have some history.
"Miller is a huge personality and huge is stature - he is about 22 stone. Bizarrely he has an unbelievable work-rate as well. He will be a problem in the ring. He has called for this fight. He has been controversial and has landed a few low blows. It didn't go down well. There was a reason - he wanted this fight and he has got his wish. They say 'be careful what you wish for'. The good news for Miller is that he gets this fight in his backyard."