Tyson Fury has agreed a lucrative multi-fight deal to be co-promoted by Bob Arum's Top Rank Boxing.
The former IBF, WBA, IBO and WBO champion and his promoter Frank Warren announced the deal, said to be worth £80 million, on Monday.
His fights will now be shown on ESPN in the United States, while BT Sport will continue to broadcast his bouts in the United Kingdom.
The news will cast doubt over a potential rematch with WBC champion Deontay Wilder, who has a deal with Showtime, while any future domestic dust-up between Fury and Anthony Joshua may also be complicated due to the latter's contract with streaming service DAZN. Now all three of the sport's top heavyweights are aligned with rival networks.