That’s the opinion of former European heavyweight title challenger David Price, who famously knocked out AJ in sparring after he spent the night in jail in 2011.
The British heavyweight was recently seen in Dubai getting in some rounds with Lawrence Okolie ahead of his eagerly-anticipated rematch with the undefeated Ukrainian which is expected to take place later this year.
Speaking to talkSPORT, the 38-year-old indicated Usyk could be his fellow Brit’s kryptonite.
When asked if AJ can replicate Muhammad Ali and become a three-time heavyweight world champion in the process, he replied: “Not against Usyk, I just think Usyk has got his number.
“Every fighter has an opponent where that style of fighting and that man in particular, where you’re just going to have be really lucky to win the fight.
“You can be lucky, but luck also creates itself with mistakes that are made by the opponent and I do not think Usyk is someone that will make the mistake where he will put himself in a position to be knocked out by an Anthony Joshua punch.
“I think he is too switched on, I think he is too sharp, he’s so clever and it’s like he is a step ahead all the time – it’s like he is thinking two, three steps ahead all the time.
“I don’t think Anthony Joshua can deal with that.”
Price added: “The only men I can see beating Usyk – some people might laugh at this – is obviously Tyson Fury because he has got an unconventional way of finding a way to win.
“It’s not textbook boxing which a well-schooled fighter can read, his unique in his fighting style, and the other person who has a similar way of fighting and you’ve got to have a great engine in Joe Joyce.
“I think big Joe Joyce can cause Usyk problems with his size, his strength, his fitness and how unconventional he fights, even throwing.
“Out of Usyk and Fury, you’ve got two men who don’t know how to lose since they were amateurs.
“But I think Fury just finds a way to win every time and I will have to stick with him.”