You're dillusional. Toughest of all time is very debatable. Chuvalo was a p4p tough guy, yes, but how can you say he was tougher than LaMotta? Tex Cobb? Chuck Wepner? Joe Grimm? Let's just say for sake of argument he's a top 10 tough guy.Chuvalo was easily the toughest guy ever to step in the ring. At his prime, he also was able to block or deflect a lot of punches. He said himself, that no one could have taken all the punches the press said he took and lived. Chuvalo was a human tank, and the man was never born who could knock him out. I still say that if Chuvalo had been in his prime when he fought Foreman, he could have knocked him out. Foreman said after the fight that George had clocked him with one of the hardest shots he'd ever taken. Chuvalo knew what he wanted to do in there that day, but he couldn't always make his body do it.
Cap
Where you get dillusional is saying that Chuvalo could knock out Foreman. In 80 some fights, Foreman was 'stopped' once [in my opinion Foreman gave up against Ali, I call it a TKO not a genuine kayo]. Holyfield, Morrison, Moorer, Stewart were all primarily in their primes, and if they couldn't knock out the middle aged Foreman with all their skill, speed, fire power, how can you say that Chuvalo could?
Chuvalo had the power to beat guys like Joe Erskine by kayo. But he sure as hell didn't have the power to stop even Floyd Patterson, who had an iffy chin. What makes you think he could knock out Foreman?