WBC heavyweight champion Tyson Fury expects his division rival, Anthony Joshua, to walk right through mandatory challenger Oleksandr Usyk.
Usyk, who unified the entire cruiserweight division in 2018, officially moved up to heavyweight the following year.
Since making the jump, he hasn't looked as impressive at the higher weight.
Last October, he was forced to fight through fire to win a tough decision over division veteran Derek Chisora.
Usyk will attempt to become a two-division champion when he challenges Joshua for the WBO, WBA, IBF, IBO world titles in September.
Fury, who returns next month in a trilogy fight with Deontay Wilder, would like to eventually face Joshua for all of the heavyweight gold.
The 'Gypsy King' does not expect Joshua to have too much trouble in overcoming his defense against the unbeaten Olympic gold medal winner from Ukraine.
"I don't believe Usyk is a heavyweight for one. I think he's a pumped up cruiserweight who struggles with heavyweights," Fury told Seconds Out.
"In my opinion, Derek Chisora beat Oleksandr Usyk - he certainly struggled with Derek Chisora and Joshua is a much bigger, stronger man than Derek.
"I think he walks straight through Usyk, people are trying to build it up as a scary fight but he didn't have the power to halt cruiserweights like Mairis Briedis or whoever else he fought.
"So he ain't going to halt AJ, 260-pounds of pure muscle and 6ft 6in, how's he going to keep him off? He couldn't hurt Derek Chisora, hit him with his best shots on the chin and he didn't hurt him, or at least it didn't look like he'd hurt him."