Eddie Hearn has put on some big fight cards in his time, but he believes that Saturday night's show at Wembley could top them all.
Anthony Joshua's challenge to IBF heavyweight champion Daniel Dubois headlines the event, supported by a stacked undercard inside London's famous venue.
Speaking after shutting down Trafalgar Square for the fight's weigh-ins, Heard bigged up the show and told TNT Sports it could be his best yet.
He said: "I think with the undercard, and all the fights, and the potential for Joshua Dubois, it could be the greatest night ever.
"Joshua Klitschko is going to take a lot of beating, but with this undercard - there are so many fights on this card that could headline arenas on their own. If they all gel, which I believe they will, that's value for money personified.
"Congratulations to everyone buying the pay-per-view tomorrow night, you've had a right touch."
More on AJ v Dubois
- Joshua vs. Dubois fight guide
- Fight week schedule
- AJ-Dubios fight week live blog
- AJ vs. Daniel Dubois: Behind-the-scenes news and gossip
- Joshua vs. Dubois undercard
- Joshua vs. Dubois: How to watch and pay-per-view prices