Floyd Patterson throws a punch at Muhammad Ali during their 1965 fight at Las Vegas Convention Center. Ali would go onto win by a TKO in the round. (Neil Leifer/SI) GALLERY: Never-Seen Photos of Muhammad Ali
LIFE magazine ran one of the late Flip Schulke's photographs of Muhammad Ali in 1961 "training" underwater in a Miami swimming pool. Ali swore that the underwater workouts made him the fastest heavyweight in the world.