Eddie Hearn suggested that Riyadh Season's The Last Crescendo is "not even the card of the decade" and instead deserves to be recognised as an all-time boxing event.
The stacked bill, headlined by an undisputed light-heavyweight rematch between Artur Beterbiev and Dmitry Bivol, takes place live on DAZN Pay-Per-View on February 22.
Daniel Dubois and Joseph Parker co-main the event at the Kingdom Arena with an IBF heavyweight title fight, while plenty of other contenders arrive looking for big belts too.
Speaking on Monday at a media event in London before next month's date with destiny in Saudi Arabia, Matchroom boss Hearn hyped it up as a history-making feat.
"This isn't the card of the year," he said. "It's not even the card of the decade. This is unequivocally the greatest card we have ever seen in the sport.
"You don't put the big names from top to bottom in fifty-fifty fights. It's a breathtaking card, by far the strongest Riyadh Season card.
"I suggest any fight fan makes their way to Riyadh on February 22, to witness the greatest spectacle in the history of boxing.
"Callum Smith versus Joshua Buatsi [is] one of the biggest fights that could be made domestically. You've got the two Matchroom versus Golden Boy matchups.
"Shakur Stevenson is the future of boxing, already a pound-for-pound star. He is a three-division world champion and a phenomenal fighter."
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