ITS HARD FOR GREAT ONES IN ANY SPORT TO LET IT GO...ITS ALL THEY KNOW... LOOK @ JORDAN... LOOK @ ALOT OF THEM. ITS DIFFERENT FOR BOXERS, THOUGH CUZ THEYRE TAKING THERE LIVES IN THERE HANDS. LOOK @ HEARNS... HANG IT UP, BOYS, YOU'RE ALREADY GREAT. GO OUT ON TOP. WHEN YOUR AT THE TOP YOU CANT DO ANYTHING ELSE BUT GO DOWN.