Originally Posted by Seamus
If chin includes stamina and mental strength....err.. no, it is not.
It is John L Sullivan.
Its simply hitting each other in the head full power as fast and as hard as you can as the other guy does the same to you till someone goes to sleep, I dont think stamina would come into it unless you were facing someone with a ridiculous chin like Ali/ Holyfield, those guys might beat a guy like george on stamina if george punches himself out and if they had enough power to put george away!?
This is not P4P primarily but u can give your answer p4p if you wish. John L sulivan as good as he was at his size would get KOTFO by big george forman as im sure you all know already.