Those are big guys, big HW's in Charles's time, Charles had his issues with HW's like Layne, Marciano and old man Walcott all respect to the cobra but those guys Usyk beat are good fighters a fair few of them can box while being 210-220lbs, consistent effort he probably loses a few we wouldn't be happy about but at his best he can beat most of them in a one off - I hope that makes sense. Charles is 100% in the GOAT conversation though, not dissing the guy just he wasn't overly big.