Any decent impact to the head can kill a man, whether trained or not, but of course a devastating puncher has a much better probability of doing it. Really, the idea of possibly killing someone isn't a serious concern to these guys as they're TRYING their damndest to hit the other guy just as hard as they can.

Power is the last thing to go. Earnie Shavers, Big George, Bob Foster could still turn any man's light out with a punch.

There was no boxing in the Indiana Prison where Mike Tyson was incarcerated.