Top Rank's CEO Bob Arum, who co-promotes Kubrat Pulev, is expecting his man to score a sensational knockout of Anthony Joshua on Saturday night in the UK.

Pulev, a mandatory challenger, will attempt to claim Joshua's IBF, IBO, WBA, WBO world titles.

They were initially scheduled to fight in 2017, but Pulev withdrew with a shoulder injury. He was replaced by Carlos Takam, who Joshua stopped in a tough fight.

The only defeat on Pulev's record, came at the hands of then unified champion Wladimir Klitschko.

Arum is still not sold on Joshua's class, after watching him get stopped in seven rounds by Andy Ruiz back in June of 2019. Joshua got revenge in December of the same year, after outboxing Ruiz over twelve rounds for a lopsided twelve round unanimous decision.

“It's one thing to box and run around the ring, making out you're second coming of Muhammad Ali when you're fighting a fat, obese Andy Ruiz - but it's going to be a different story when you're fighting a fit and ready Pulev, who's in great shape and a good boxer," Arum told Marc Gatford of Betway Insider.

“I believe Kubrat will be able to match Joshua with boxing ability and will have an opportunity to catch Joshua and knock him out. Pulev is very strong and has good pedigree, so Joshua won't be able to run and do what he did to Ruiz in the rematch.

"Pulev has the ability to corner Joshua and to take him out, so I believe not only is Pulev going to win the fight but he's going to win it by knockout. We promoted Ruiz 30 times and most of the time he had trouble impacting opponents with his power, so the fact he devastated Joshua so badly indicates to me Joshua has a big weakness and that is his inability to take a punch.”

“I'm not a fool, I'm talking about what I've seen: I saw Anthony Joshua got knocked on his ass and thoroughly beaten not so long ago.”