Most intimidating sports figures of all times?

[Roscoe_Word]

Muhammad Ali - by far !!

"I'm pretty.....I'm a bad man."

After Howard Cosell calls him "truculent" during an interview, Ali responds "I don't know what that means, but if it's good...it's me."

[Roscoe_Word]

Rocky Marciano

Definitely. There was a photo of him at my old barber shop. The guy had absolutely no neck.

[KVB]

Seem like Ali talked a lot of shit but Tyson not only threatened to eat another guy's children, he actually bit a guy's ear off showing he might be serious, and not just talking shit.

How can you get more intimidating than that?