In a significant addition to one of the most anticipated fight cards in modern boxing history, former world heavyweight champion Deontay Wilder will return to the ring to face Australia’s undefeated cruiserweight powerhouse Jai Opetaia in December. The high-profile matchup has been officially added to the undercard of the long-awaited, all-British heavyweight showdown between Tyson Fury and Anthony Joshua, serving as the co-main event of a landmark evening of professional boxing at Cardiff’s Principality Stadium in Wales.
The high-stakes clash between Wilder and Opetaia will feature the WBA ‘super’ heavyweight title on the line, adding championship prestige to an already monumental bill. The inclusion of this co-main event gives the December card immense weight across multiple weight classes and generations, combining the return of one of the most dangerous power punchers in heavyweight history with the heavyweight debut of one of the sport’s most dominant active champions.
For the 31-year-old Opetaia, the fight represents a dramatic and courageous step into uncharted territory. The Australian fighter, who currently holds the WBA ‘regular’ cruiserweight championship, will be stepping up to the heavyweight division for the very first time in his professional career. Opetaia enters the contest boasting an unblemished record of 31 victories in 31 fights, with 24 of those wins coming by way of knockout. Having established absolute authority over the cruiserweight ranks through years of dominance, the undefeated champion is now seeking a fresh challenge on the sport’s largest platform by testing himself against the elite power of the heavyweights.
Stepping into the heavyweight division is a formidable task for any fighter transitioning from lower weight classes, but choosing to make that debut against a puncher of Wilder’s pedigree underscores the scale of Opetaia’s ambition. After sweeping through his rivals at cruiserweight and maintaining an unbeaten record, Opetaia’s leap to heavyweight presents an opportunity to capture a major world title in a second division, while simultaneously testing his skills and durability against a seasoned world champion who has spent his entire career competing at the highest level of the premier weight class.
On the other side of the ring stands Deontay Wilder, the 41-year-old American veteran who remains one of the most polarizing and devastating figures in combat sports. Wilder brings a wealth of high-level championship experience to the contest, along with an extraordinary record of 45 wins, 4 losses, and 1 draw, featuring 43 victories inside the distance. Revered for his singular, game-changing power, Wilder held the WBC heavyweight title for five years, reigning supreme from 2015 to 2020 and establishing himself as one of the most feared punchers of his generation.
For Wilder, this co-main event encounter in Cardiff is far more than just another fight on a high-profile card. The American enters the bout looking to re-establish himself among the heavyweight division’s elite following a challenging stretch in his career. After spending half a decade at the top of the division as WBC champion, Wilder experienced a series of intense, career-defining battles that altered the landscape of the heavyweight ranks, and he now seeks a decisive victory to prove that his trademark power and championship caliber remain intact.
Wilder’s career trajectory has long been intertwined with the headline fighters appearing on the Cardiff bill. Most notably, the American engaged in an epic, historic trilogy with Tyson Fury that captivated the boxing world across three unforgettable bouts. While the first meeting ended in a dramatic draw, Wilder came out on the losing side in the subsequent two clashes, suffering back-to-back defeats that ultimately ended his long reign as WBC champion. The trilogy with Fury helped define modern heavyweight boxing and established a permanent rivalry between the two men.
In addition to his trilogy with Fury, Wilder was previously on the brink of securing a long-discussed super-fight against Anthony Joshua. For years, a collision between Wilder and Joshua was considered one of the biggest prospective bouts in global sports. However, those plans were ultimately derailed in June 2024, when Wilder suffered a sudden knockout loss against China’s Zhilei Zhang. That setback paused negotiations for a direct clash with Joshua, leaving Wilder to rebuild his standing in the division. Now, by appearing on the undercard of Fury versus Joshua, Wilder finds himself competing under the very same lights as the two men who have defined his biggest rivalries and missed opportunities.
The main event itself—the long-awaited, all-British clash between Tyson Fury and Anthony Joshua—has generated unprecedented public interest, creating an electric buildup for the entire card. The demand for the event was starkly demonstrated when tickets for the Principality Stadium show sold out in under an hour after going on sale, reflecting the public’s eagerness to witness the historic night in person. Fans snapped up seats at record speed despite the late-night timing structured for the event’s broadcast schedule.
Organizers have confirmed an unconventional late-night schedule for the event in Cardiff. The main event ringwalks for Fury and Joshua are expected to take place at approximately 01:00 GMT on Saturday, 12 December. The lead-up to the main ringwalks will feature a short live music performance inside the stadium to build atmosphere before the headline fighters make their entrances. To accommodate the late-running schedule and the post-fight proceedings, Principality Stadium will remain open to spectators until 03:30 GMT, ensuring fans can experience the full extent of the evening’s action.
While the co-main event between Wilder and Opetaia provides an elite secondary anchor for the card, the rest of the undercard is still being finalized. Promoters and organizers are currently working to complete the full lineup of supporting fights, with further announcements expected in due course. Among the potential matchups generating significant attention is a reported clash featuring local favorite Joe Cordina. Wales’ former IBF super-featherweight champion is thought to be in active negotiations to fight legendary multi-division world champion Manny Pacquiao on the Cardiff bill, a matchup that would add further star power and local resonance to the historic event.
The potential addition of Cordina versus Pacquiao alongside the confirmed Wilder versus Opetaia clash emphasizes the grand scale of the event being assembled at Principality Stadium. For local fans in Wales, the prospective inclusion of former champion Cordina against an iconic figure like Pacquiao offers a major home-soil showcase, perfectly complementing the international heavyweight spectacle at the top of the bill.
As December approaches, the fight card in Cardiff stands as one of the most comprehensive and narrative-rich events in recent boxing history. With Opetaia testing his undefeated record in a daunting move up to heavyweight, Wilder fighting to salvage his position among the division’s elite, and Fury and Joshua finally meeting to resolve their storied rivalry, the event at Principality Stadium promises to deliver a compelling night of championship boxing from top to bottom.
