That is the brutal verdict of promoter Frank Warren.
Joshua defended his WBA and IBF world heavyweight titles with a 10th round stoppage win over Carlos Takam in Cardiff on Saturday.
The Brit is keen to unify all the world title belts, but he may have to take on some mandatory challengers before locking horns with the likes of Deontay Wilder and Joseph Parker.
But Warren was far from impressed with Joshua’s display against Takam and think comparisons to the late great Ali are too premature.
“He was very heavy,” Warren said.
Joshua vs Takam: The moment the ref STOPS the fight
Sat, October 28, 2017
This is the moment the referee stopped Anthony Joshua’s stunning heavyweight fight with Carlos Takam
Action Images via Reuters
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Anthony Joshua's heavyweight title fight with Carlos Takam is stopped by the ref
Anthony Joshua has a choice of options for his next fight
You look at Dillian Whyte, who banged him on the whiskers. You can see there’s chinks there
“It is what it is. You expect him to beat a 36-year-old, who was coming in as a last-minute replacement substitute.
“But to compare him, Takam, to Evander Holyfield’s style, come on, if he’d [Joshua] been in there with Evander Holyfield, he would have come out with the belt.
“He would have caught him. If he would have caught him, he would have known about it. He must get embarrassed, AJ, that people compare him to [Muhammad] Ali.
“Let’s be realistic. He’s a great young fighter, Anthony Joshua, but he ain’t no Muhammad Ali. Muhammad Ali was around for a long, long time, not [just] 3 fights. Muhammad Ali was considered a good fighter after beating Sonny Liston twice.
Frank Warren doesn't think Anthony Joshua is anywhere near the level of Muhammad Ali
“They all thought he was nothing. So, don’t compare him with that. The one thing he hasn’t got, which Muhammad Ali had, is one of those [Warren points to his chin], because he gets caught. It’s being disingenuous to Anthony.
“These guys need to calm themselves down. You got eyeballs; watch what you see. He beat Charles Martin. Charles who? For a belt the IF nicked off of Tyson Fury, and he had an exciting fight against Klitschko.
“But let’s get it right. Klitschko, 18 months before, was taken to school by Tyson Fury; you look at that. You look at Dillian Whyte, who banged him on the whiskers. You can see there’s chinks there.”