Clay even picked the round -- the fourth .
His last major fight was when he was knocked out by the 20 - year - old sensation that was Cassius Marcellus Clay , in Los Angeles in November 1962 .
Cassius Marcellus Clay even picked the round -- the fourth .
His last major fight was when he was knocked out by the 20 - year - old sensation that was Cassius Marcellus Clay , in Los Angeles in November 1962 .