The biggest card boxing has ever seen is underway with headline fights all over the place to delight fans a day out from Christmas.

Boxing: Day of Reckoning SUN 24th DEC 3AM AEDT | Order Now with Main Event on Kayo Sports

Former two-time unified heavyweight champion Anthony Joshua headlines the card taking on Swedish superstar Otto Wallin.

In the co-main event, former WBC heavyweight champion Deontay Wilder takes on New Zealand’s Joseph Parker, the former WBO champion.

Joshua and Wilder are expected to square off in 2024, but it all depends on how they fare in their respective fights.

Don’t miss a second of the action right here.

6:30am – Dubois vs Miller

Daniel Dubois has been dubbed a quitter in the lead up to the fight with Jarrell Miller and while he looked like he was breathing heavy after the opening round, he’s been the more productive fighter.

Miller, who tipped the scales weighing 40 kilograms more, vowed to make his rival quit again by bringing the pressure.

Despite Dubois

Both men have landed some heavy shots in the opening rounds of this fight but it looks like it’s all going to come down to who has the better chin and the bigger heart.

6am – Aussie star delivers murderous knockout

Jai Opetaia wasn’t happy about being stripped of his IBF cruiserweight belt and took his anger out on Ellis Zorro in murderous fashion.

The Aussie lost his belt after electing to take the fight on the monster card, but he showed the world why he’s the most devastating cruiserweight on the planet.

As the pair exchanged in the opening round, Opetaia launched forward with a nuclear left hook that landed clean on the button.

The shot sent Zorro crashing straight back to the canvas with his neck landing on the bottom rope.

“I trained for 12 rounds, but if the knockout comes, it comes,” Opetaia says.

“He was very hesitant, but he was a bit too hesitant and he got clipped. That’s the way it goes.

“I did [take some of the week’s frustration out in the ring], but look at this place. I’m happy to be here,” Opetaia says.

“I’m pumped, first round knockout, I’m ready for the next fight.

“The last 18 months is all part of the journey.

“It’s all built to where I am now and I’m excited for the next step.

“These dudes put the people in front of me and I knock them out.”

Promoter Eddie Hearn was full of praise for the Aussie and predicted a big move up to the heavyweight division.

“I believe Jai can do the same thing [as Oleksandr Usyk],” Hearn says.

“I would like to see him become undisputed in the cruiserweight before he moves up to heavyweight.

“And that is inevitable, this is one of the most exciting fighters on the planet

“He’s one of the best fighters on the planet.”

6am – Day of Reckoning full card and results

Anthony Joshua vs. Otto Wallin, heavyweights

Deontay Wilder vs. Joseph Parker, heavyweights

Dmitry Bivol (c) vs. Lyndon Arthur, WBA light heavyweight title

Daniel Dubois vs. Jarrell Miller, heavyweights

Agit Kabayel def. Arslanbek Makhmudov via fourth-round TKO

Jai Opetaia def. Ellis Zorro via first-round knockout

Filip Hrgovic def. Mark De Morio via first-round TKO

Frank Sanchez def. Junior Fa via seventh-round TKO