Anthony Joshua and Tyson Fury will meet in a single, decisive heavyweight contest on December 11 at Principality Stadium in Cardiff, with no rematch clause written into their agreement.
The two former world champions have been locked in rivalry for nearly a decade, but their all-British showdown is structured as a "one-off" encounter, with the loser potentially facing retirement from the sport.
Spencer Brown, Fury's manager, outlined the contractual position to Sky Sports News:
"Contractually, there's one fight. There's one big fight. It was designed for that. I'm not saying there can't be a second fight. But, if Tyson wins, we'd like to resume things with [Oleksandr] Usyk as well."
Brown emphasised the career implications for both fighters, noting that defeat could signal the end of the road for either man.
"They're all close to the end of their careers. Whoever loses here, where do they go? That's a tough one. Where do they go afterwards? Whoever wins, the journey continues. Whoever loses, they've got to think about what they're going to do and when they're going to do it."
Eddie Hearn, Joshua's promoter, left the door open to a potential rematch should the December encounter prove sufficiently compelling.
"No rematch clause. It's one fight, one-off. Listen, if it's a blockbuster, I'm sure they'll do it again. But for our mindset, it's one and done. Go in there, end this guy and on we go."
Hearn expressed confidence that both fighters would display extraordinary determination to secure victory.
"Both guys could be down in this fight but they're so desperate to win you can guarantee they'll be climbing and crawling off that canvas to win the fight."
The bout carries significant financial stakes. According to promoter Frank Warren, each fighter will earn more for this bout than any British fighter had previously received for a single fight.
The WBA "super" heavyweight title is expected to be contested, adding further prestige to the encounter. The fight will receive global broadcast on Netflix, with promotion involving The Ring and Dana White's Zuffa Boxing.
Joshua has already signalled his aggressive intentions. The challenger predicted a knockout, saying it could come in the first round, as part of his determination to deliver a spectacular performance in the long-awaited all-British heavyweight clash.
The two rivals traded taunts at their first joint press conference in London on September 30, building momentum toward the showdown. The Cardiff venue was selected after negotiations over other locations, with Joshua's contract requiring a UK staging.
What happens next
The fight is scheduled for Friday, December 11, at Principality Stadium in Cardiff, though the precise start time has not yet been announced.
