Eddie Hearn, promoter for IBF, IBO, WBA heavyweight champion Anthony Joshua (19-0, 19 KOs), is going to explore the possibility of having his star fight on foreign soil - like the United States.

Joshua is defending his titles next Saturday night, October 28, against late replacement Carlos Takam at Principality in Cardiff. A crowd of 80,000 is expected.

With his popularity already solidified in the UK, there is increasing pressure to take the show on the road - as numerous countries would like to have Joshua defend his titles on their soil.

One of the biggest fights for Joshua is a unification with WBC heavyweight Deontay Wilder (38-0, 37 KOs), who defends his title against mandatory challenger Bermane Stiverne on November 4 at Barclays Center in Brooklyn, New York.

Joshua has an exclusive television deal with Showtime, which expires soon. There are some rumblings that Hearn could bring him over to rival network HBO in 2018. The two networks were bidding heavy to secure the American rights to Joshua's upcoming fight - which Showtime won.

However, Wilder has an exclusive deal with Showtime - which in turn would make a unification quite difficult to make if Joshua jumps ship to a rival network.

Most foreign heavyweight champions, at some point, defend in the United States.

Joshua recently stated that he's not exactly rushing to cross the ocean for a title defense in a foreign country.

While Hearn admits his boxer would like to remain in the UK, they have to explore the idea of fighting overseas - to satisfy the growing demand.

“I think an international fight is a possibility. He really doesn’t want to leave the UK and Britain - because his fanbase is incredible and what we’re doing over here - it’s never really been seen before - [in terms of] the numbers. But he is the world heavyweight champion, there is demand from many countries to stage AJ fights and it’s something we have to look at... potentially in early 2018," Hearn told BoxingScene.com's Declan Taylor.