Former WBC heavyweight world champion Deontay Wilder is set to return to the global boxing stage in a massive co-main event, squaring off against Australia’s undefeated cruiserweight king Jai Opetaia. The high-profile collision will serve as the chief support for the long-awaited all-British heavyweight showdown between Tyson Fury and Anthony Joshua at Cardiff’s Principality Stadium in December. With the WBA ‘super’ heavyweight title on the line, the contest introduces an extraordinary dynamic to an already historic night of combat sports, bringing together two world-class fighters at vastly different crossroads in their respective careers.
The announcement adds immense depth to what is widely expected to be one of the biggest sporting events of the year. By placing Wilder and Opetaia in the co-main event slot, event organizers have crafted a bill that combines the historic rivalry of Fury and Joshua with a fascinating inter-divisional clash featuring a iconic American heavyweight slugger and an undefeated Australian champion testing new waters. The stakes could not be higher for both combatants, as the outcome is poised to reshhape the landscape of the heavyweight division heading into the future.
For Wilder, 41, the bout represents a vital opportunity for career redemption and a chance to firmly re-establish himself among the heavyweight elite. The American power-puncher, who boasts a professional record of 45 wins, 4 losses, and 1 draw, has long been regarded as one of the most feared and devastating punchers of his generation. Out of his 45 career victories, an astonishing 43 have come by way of knockout, underscoring a level of raw, fight-ending power that has made every one of his ring appearances mandatory viewing for fight fans across the globe.
Wilder previously enjoyed a dominant reign as the WBC heavyweight champion, holding the coveted belt from 2015 to 2020. During those five years, his explosive right hand turned away numerous contenders and solidified his status at the summit of the sport. His championship reign eventually culminated in an epic and historic trilogy with Tyson Fury—a series of fights that helped define the modern era of heavyweight boxing. Across their three memorable encounters, Wilder battled Fury through a thrilling draw in their first fight before suffering two high-profile defeats in their subsequent rematches.
Despite those setbacks against Fury, Wilder remained one of the most marketable and dangerous names in boxing, with public demand mounting for a long-discussed mega-fight against British star Anthony Joshua. The two heavyweights appeared to be on a collision course for years, but those plans were dramatically derailed in June 2024. Facing China’s heavyweight contender Zhilei Zhang, Wilder suffered a devastating knockout defeat that halted his momentum and temporarily shattered prospects for the highly anticipated Joshua clash. Now, sharing a fight card with both Fury and Joshua in Cardiff, Wilder finds himself presented with the ideal platform to erase the sting of that loss and demonstrate that his signature knock-out power remains as formidable as ever.
To accomplish that goal, however, Wilder must overcome an opponent who enters the ring with an unblemished record and supreme confidence. Jai Opetaia, 31, will be stepping up to the heavyweight division for the very first time in his career. The Australian standout brings an impressive record of 31 wins, zero losses, and 24 knockouts into the ring. Having established his dominance as the WBA ‘regular’ cruiserweight champion, Opetaia has ruled over the 200-pound division for years, systematically turning back challengers and cementing his reputation as a technically refined yet clinically dangerous champion.
After years of sustained dominance at cruiserweight, Opetaia is now seeking a fresh challenge on the biggest possible stage. Moving up to heavyweight is a historically perilous undertaking, but the undefeated Australian has chosen to bypass warm-up bouts in his new division, opting instead to challenge one of the most destructive punchers in heavyweight history right out of the gate. A victory over Wilder would instantly transform Opetaia from a dominant cruiserweight king into an immediate power player in boxing’s flagship weight class.
The tactical contrast between the two fighters makes the co-main event a compelling spectacle. Opetaia brings youth, speed, flawless timing, and an unbeaten momentum that has seen him go untested across 31 professional bouts. Wilder, on the other hand, possesses unmatched experience in high-stakes heavyweight encounters and the proven ability to alter the course of any fight with a single, decisive blow. With the WBA ‘super’ heavyweight title hanging in the balance, both men have everything to play for in Cardiff, knowing that a single mistake could drastically alter their career trajectories.
The inclusion of Wilder versus Opetaia only heightens the excitement surrounding an event that has already captivated the sports world. The primary attraction of the evening remains the long-awaited showdown between Tyson Fury and Anthony Joshua—a fight that has spent years as the most demanded matchup in British boxing history. Bringing together two former unified heavyweight champions for an all-British clash has generated unprecedented public interest, as reflected in the staggering speed of ticket sales for the Cardiff card.
When tickets for the blockbuster event at the Principality Stadium were released, sports fans rushed to secure their places inside the venue. The entire ticket allocation sold out in under an hour, highlighting the immense public appetite for the historic card. The massive demand came despite an unusual fight night schedule tailored to international television audiences and late-night broadcast commitments.
Organizers have confirmed that the main event ringwalks for Fury and Joshua are expected to start around 01:00 GMT in the early hours of Saturday, 12 December. Before the main event fighters make their long-awaited walk to the ring, the stadium audience will be treated to a live music performance designed to build the atmosphere for the primary contest. To accommodate the late-night schedule and give spectators ample time to enjoy the full lineup—including the Wilder vs. Opetaia co-main event—the Principality Stadium will remain open until 03:30 GMT.
The late-night setting in Wales promises to create a electric environment inside the venue. With over 70,000 fans packed into the stadium until the early hours of the morning, the atmosphere will provide a dramatic backdrop for Wilder and Opetaia as they wage war for heavyweight honors. For Wilder, a victory on such a massive stage would revitalize his career, proving that at 41 years old he remains a vital figure among the heavyweight elite. A win would also position him for further major fights down the line, potentially reigniting talks for future blockbuster matchups.
For Opetaia, the December card represents the ultimate test of his physical capabilities and championship ambition. Transitioning from cruiserweight to fight a former heavyweight champion with 43 knockouts is a high-risk endeavor, but it offers the Australian an unprecedented opportunity to shock the boxing world and claim world title glory in a second weight division.
As the countdown to 12 December continues, boxing enthusiasts around the world are preparing for a night of extraordinary intrigue in Cardiff. Featuring an undefeated cruiserweight star daring to be great, a legendary knockout artist seeking redemption, and an all-British heavyweight main event, the card at the Principality Stadium stands as one of the most significant moments in modern boxing history.
