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Competing at the ‘Day of Reckoning’ boxing mega-card in Saudi Arabia, Australia’s Jai Opetaia has delivered a stunning one-punch, first-round knockout of Ellis Zorro to maintain his unbeaten record and remind the world that he is the best cruiserweight on the planet.

Fellow Australian Mark de Mori was demolished in the first round by a title contender, while Daniel Dubois claimed a big career-reviving win over Jarrell Miller.

So far, there have been stoppages in all five of the bouts so far.

Still to come are two massive heavyweight battles between Anthony Joshua and Otto Wallin, and Deontay Wilder and Joseph Parker.

Before that, Dmitry Bivol defeated Lyndon Arthur in a fight for the WBA and WBO light heavyweight titles.

Follow the action in our live blog below!

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

HOW TO WATCH

Boxing fans in Australia will be able to tune into the card via Main Event on Kayo Sports

Click HERE to order now!

START TIME

The Day of Reckoning card kicks off at 3am (AEDT).

WHEN IS IT

The biggest boxing card this year is on December 24, AEDT.

FULL FIGHT CARD + RESULTS

Anthony Joshua v Otto Wallin — heavyweight

Deontay Wilder v Joseph Parker — heavyweight

Dmitry Bivol def. Lyndon Arthur via UD (120-107 x3) — for WBA light heavyweight title

Daniel Dubois def. Jarrell Miller via tenth-round TKO (2:52)

Agit Kabayel def. Arslanbek Makhmudov via fourth-round TKO (2:03)

Jai Opetaia def. Ellis Zorro via first-round KO (2:56)

Filip Hrgovic def. Mark De Mori via first-round TKO (1:46)

Frank Sanchez def. Junior Fa via seventh-round TKO (2:42)

LIVE BLOG:

Follow along for live updates from the ‘Day of Reckoning’. Can’t see them? Click here!

HUGE CALL OVER ‘INEVITABLE’ OPETAIA

Opetaia was stripped of his IBF cruiserweight world title for taking a Saudi Arabian payday to fight Ellis Zorro, but caught his opponent with a left to the chin and sent him crashing to the canvas in the dying seconds of the first round.

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

“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 added.

“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.”

Meanwhile, promoter Eddie Hearn says it is ‘inevitable’ that Opetaia takes over the entire division before moving up to heavyweight.

“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.”

Meanwhile, Australian journeyman Mark de Mori was never expected to give Filip Hrgović much trouble, and the predictions came true when the mandatory IBF challenger stopped the Aussie in the opening round.

“To be honest, I expected this type of scenario,” Hrgović (17-0, 14 KOs) said.

“This was a keep busy fight ... I am ready for a title.

“IBF declared that I am next in line, I should fight winner of Tyson Fury - Usyk.”

DUBOIS CLAIMS STATEMENT WIN

Daniel Dubois put himself back into heavyweight title contention by defeating – and stopping – Jarrell Miller in a gutsy final-round TKO.

Miller, who has faced multiple failed drug tests and bans in his career, weighed in at over 300 pounds for this fight but failed to live up to his big-talking build-up to the fight - and the 38 year-old’s career is on the ropes after a first-ever stoppage loss.

Dubois landed his jab exceptionally off the back foot all fight as Miller lumbered forward.

Dubois came through a scare in the middle rounds and could have cruised to victory in the tenth and final round, but instead hunted a knockout victory – and the referee stepped in with just eight seconds remaining.

“It was a great fight and I’m glad I came through it. I showed my heart,” Dubois said afterwards. “I knew I had to get out there and work.

“This was an important win for me.”

Dubois, who has repeatedly faced allegations of being a ‘quitter’ in fights, said he had proved to himself that he’s worthy of fighting on the big stage.

“I had to prove it to myself, I had to show myself that I was a real fighter,” Dubois said.

BIVOL TOO GOOD IN TITLE MASTERCLASS

Meanwhile, Dmitry Bivol showed no signs of ring rust in his first fight in almost 14 months, taking care of Lyndon Arthur in a boxing masterclass as he defended his WBA light heavyweight title and claimed the IBO crown via unanimous decision (120-107 x3).

It was Bivol’s 11th title defence and the champion was relentless in his pressure, connecting with numerous clean shots as Arthur tried to work his jab to get the fight on his terms but found no success.

That continued for the majority of the fight, although to Arthur’s credit he was able to last until the final bell and even landed a few clean shots of his own.

It was a one-sided performance though as a whole from Bivol, who hunted the finish and scored a late knockdown in Round 11 with a brutal flurry of punches that looked destined to drop Arthur.

Bivol was unable to connect on the uppercut that may well have brought an end to the fight, taking it to a final round as Arthur went the distance.

Still, there was no stopping Bivol from defending his belt in dominant fashion, also taking home Arthur’s IBO light heavyweight title in the process.

FULL CARD PREVIEW

Later, Otto Wallin and Joseph Parker will be looking to play spoiler on the biggest boxing card of the year, hoping to ruin plans for a fight between Anthony Joshua and Deontay Wilder.

The highly-awaited bout, which Joshua said would be the “biggest fight in the world” in an interview with Sky Sports, appears to be on track for 2024 should both have their hand raised on Sunday morning in Saudi Arabia.

Joshua will be gunning for this third win from as many fights in 2023, having previously beat Jermaine Franklin Jr by unanimous decision in April before a seventh-round stoppage success against Robert Helenius in August.

“I know where I’m going in my life but I’ve got to say this is a checkpoint and if I don’t get past this, there is no future so I’m fully locked in to Otto Wallin and doing the job,” Joshua told reporters at Friday’s press conference.

The only three losses of Joshua’s career have come to Andy Ruiz and current world champion Oleksandr Usyk (twice), while his opponent on Sunday has just the one professional defeat in his career, coming at the hands of Tyson Fury.

Wallin, a Swedish southpaw, described it as a “big fight and big opportunity” for him.

“I’m going to win the fight and it shouldn’t be an upset, it’s natural and it’s my time,” he said.

In the co-main event, Wilder — who has fought less than one professional round in the last two years — will hope ring rust won’t get the best of him against Kiwi Joseph Parker.

Parker boasts a 33-3 record with 23 knockouts and has only been stopped once in his career, going down to Joe Joyce in 2022.

The Kiwi has only improved from that point though, currently on a three-fight win streak with two coming by knockout.

Wilder though, who was has won 42 of his 46 fights by knockout, is promising to get the stoppage on Sunday.

ULTIMATE GUIDE: Everything you need to know ahead of the Day of Reckoning

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“I come to do what I do best, and that’s what the fans want to see, no one wants to see a 12-round fight and we are heavyweights and hard hitters, they wanna see us fight and then afterwards go party,” Wilder said.

“Nowadays my name is called Dr Sleep and I’ve definitely got the NyQuil in my right hand.”

There is plenty on the line for both Wilder and Joshua on Sunday, with a loss or injury the only two potential roadblocks to the pair facing off in the ring.`

“Now the moment has come where it’s the closest that it’s ever been in history right now,” Wilder told Sky Sports.

“The closest that it’s ever been. I’m excited to say that. I’m not 100 percent sure that it’s going to happen. There’s a lot of things that has gone on, a lot of things that has been done.

“You can’t be 100 percent until that bell rings and that first punch has been thrown.”