Deontay Wilder is reportedly set to fight Jai Opetaia on the undercard of Tyson Fury and Anthony Joshua’s huge heavyweight clash.The hotly anticipated all-British fight between Fury and Joshua is slated for December 11 at the Principality Stadium in Cardiff.Wilder would be a surprise inclusion on the card having previously accused Fury of cheatingGettyWilder’s history with FuryAnd the apparent inclusion of Wilder is something of a surprise, given his longstanding rivalry with Fury.Wilder has repeatedly accused Fury of cheating during their bouts.Fury has brushed off the allegations, though, commenting earlier this year: “You don’t hear me crying and moaning about it, saying someone cheated.“That’s not me. There’s no point crying over spilt milk.”Nonetheless, according to boxing insider Dan Rafael, a deal has been agreed for the USA’s Wilder to face Australia’s Opetaia before the headline event in the Welsh capital.Posting on X, Rafael explained: “Per source, while it’s not signed yet, deal is agreed for Wilder-Opetaia to be on the Fury-Joshua card.”The weight of the fight has yet to be determined, though it’s thought Opetaia would move up from cruiserweight to heavyweight.Opetaia is undefeated in 31 professional fights to date.However, he is currently in a legal battle with the IBF after the sanctioning body stripped him of his world cruiserweight title earlier this year.Fury promises to give Joshua ‘final payday’Speaking as he trains for his lucrative showdown with Joshua, Fury admitted he didn’t see the fight materialising.Fury and Joshua will fight for the WBA ‘super’ heavyweight title in DecemberGetty“I never thought it would happen,” he told WSVN Miami earlier this month.“I didn’t think he [Joshua] had the minerals to get in there with the GK [Gypsy King, Fury’s nickname], and he didn’t previously. Four or five times he turned the fight down.“At the end of his career now, he wants a final payday. I’ll give it to him, no problem.[Fans] will see an end of an era. Me especially, I’m from the class of 2008 [as an amateur], Olympic year ’08. It’s been a long time; this fight’s been building for a very long time.“What will they see? They’ll see legendary fighters throwing down in their late 30s like all the greats did before.“Since time began, men have fought each other for a prize. Or for a victory. Or for whatever it might be. Respect. So there’s nothing different going on here. Just two modern-day gladiators throwing down. For pride, glory and a **** ton of money.”