Blast for the past: The Reign Man
Seattle forward Shawn Kemp attempts a dunk during the 1991 Slam Dunk Contest in Charlotte, NC. Kemp would finish second to Celtics guard Dee Brown. (Nathaniel S. Butler/Getty Images)
SI VAULT: Just an NBA babe, Shawn Kemp is a potential marquee man (11.27.89)
One of the Greatest Ali pictures ever.
Muhammad Ali stands over Sonny Liston after knocking him out in the first round of their 1965 fight. Ali turns 70 today. (Neil Leifer/SI)
GALLERY: Classic Photos of Muhammad Ali | Ali at 70
VIDEO: Boxing historian Bert Sugar on greatness of Ali
SI VAULT: Ali beats Frazier in Manilla (10.13.75)








