There was a fighter, just died of cancer recently, that fought bulls. He almost died in his first fight with one actually but he also killed 2 or 3 bulls with one punch.
Ahh, yes, the legendary Mas Oyama. Didn't hear about him almost dying. Scissored off a horn with a right and then cold cocked the bull with a left. Wasn't a very large bull, but enough to mess a brogan up.
Why do people think wrestlers are the best fighters. There are several styles of fighting way more effective on the ground than some form meant to pin an opponent.