Artur Beterbiev's rematch with Dmitry Bivol rematch, on a blockbuster bill featuring Daniel Dubois' IBF heavyweight title clash with Joseph Parker, on February 22 will be live on Sky Sports Box Office.
Beterbiev, the undisputed light-heavyweight world champion, fights Bivol once again after handing the former WBA titlist his first professional defeat in October to unify all four of the major belts.
Bivol did become the first professional opponent to go the distance with fearsome puncher Beterbiev and he wants revenge for his contentious decision defeat, as well as the chance to win the IBF, WBC, WBO and WBA world championships.
On the same Riyadh Season event, live Sky Sports Box Office, Daniel Dubois returns to action after he secured an emphatic knockout victory over British boxing superstar Anthony Joshua inside five rounds at Wembley Stadium in September.
Dubois first became the IBF's Interim titlist when he beat Filip Hrgovic in June. His status was upgraded to full world champion when Oleksandr Usyk's commitment to his December 21 rematch with Tyson Fury meant he had to vacate that belt.
Parker will be a serious challenge for him.
The New Zealander is a former world champion himself and has been pressing for another title shot with a sequence of eye-catching victories, notably upsetting hard-punching former WBC champion Deontay Wilder last year and then outpointing Zhilei Zhang to win the WBO Interim title.
Two top-level British light-heavyweights meet when Joshua Buatsi fights Callum Smith for the former's WBO Interim title.
Buatsi captured the belt with a decisive win over Willie Hutchinson last September, while Smith, a former world champion at super middleweight, rebounded from last year's loss to Beterbiev with a November stoppage of Carlos Galvan.
Also on the card, Zhang will fight unbeaten heavyweight contender Agit Kabayel for the WBC Interim heavyweight title.
Zhang is coming off a devastating knockout win over Wilder, while Kabayel builds on back-to-back triumphs over unbeaten behemoths Arslanbek Makhmudov in December 2023 and Frank Sanchez last May.
Ilford's Hamzah Sheeraz challenges for a stake of world championship glory when he takes on Carlos Adames for the WBC middleweight title.
Adames is 5-0 since his lone loss, including wins over Sergiy Derevyanchenko and Julian Williams. Sheeraz had a breakout year in 2024, notching stoppage victories over Liam Williams, Austin Williams, and Tyler Denny.
Shakur Stevenson is also set to make a defence of his WBC lightweight belt against Floyd Schofield, while Vergil Ortiz will risk his WBC Interim super-welterweight title against Israil Madrimov.
Ortiz seized the belt in August 2024 with a gruelling majority decision over Serhii Bohachuk, rising from the canvas twice to prevail on the scorecards. Madrimov returns following his first career setback, a unanimous decision loss to pound-for-pound great Terence Crawford.
Best card ever?
Former world title challenger and Sky Sports boxing expert Matthew Macklin said: "It's certainly one of the best cards there's ever been. Certainly the best card in recent memory. It's stacked from the main event.
"Joshua Buatsi vs Callum Smith would be the headline fight on a card here in the UK, I'd say it would be the headline on a pay-per-view event, or any other pay-per-view event that wasn't this one. It really is a fantastic fight. That is a real 50-50, pick 'em fight, as are all the fights on the card.
"Shakur Stevenson was labelled when he turned professional as the heir apparent to Floyd Mayweather.
"Obviously the rematch between Beterbiev and Bivol, like [Oleksandr] Usyk and [Tyson] Fury, I think it will be similar, I think it will be a fight that will be nip and tuck and again I can see opinions differ at the final bell as to who they see won.
"Dubois is coming off that win over Anthony Joshua, which was spectacular, it was devastating.
"It wasn't a lucky punch, Dubois was bossing the fight and it was Anthony Joshua who came out knowing he needed to do something big and try and turn it around. He actually caught Dubois with a good shot, stepped into to try and finish him - walked on to that short right hand over the top which knocked him out.
"It was a devastating knockout and a devastating performance. So I think on the back of that you'd say Dubois is the favourite.
"But Joseph Parker is a very in-form heavyweight contender. He's bouncing into this fight confidence sky high. He's on a real run. One of the most active fighters in any division but particularly the heavyweight division. The win against Deontay Wilder, the win against Zhang, two big punchers that nobody wanted to face. He stepped up to the plate and produced the wins.
"He's also had that 12-round experience seven years ago against Anthony Joshua. The Joseph Parker of today is a much better Joseph Parker than the one who fought Anthony Joshua in Cardiff all those years ago."
Watch Beterbiev-Bivol 2, Dubois-Parker and more on February 22 live on Sky Sports Box Office.
