Boxing is entertainment, so to be successful a fighter must not only win but he must win in an exciting manner. He must throw punches with bad intentions.
You got to be smart you got to be clever and not get hit and when your able to do this your a fighter
Mike's (Tyson) punch is like an atomic bomb in that it is relative to nature. Both have no value unless you have a means of conveying it to the target. He is boxing-smart.
A fighter has to know fear.