He had his first cover shot on ?Sports Illustrated? in 1962 at age 19. For the 1966 heavyweight title fight between Cleveland Williams and Muhammad Ali, Leifer placed a camera in the rafters of the Houston Astrodome in order to get a shot of the canvas when the victor knocked out his competition. His shot of Ali standing over a defeated Williams has been seen by millions. A year earlier, Leifer was one of the only two photographers with color film in his camera when Ali knocked out Sonny Liston in Lewiston, Maine, and his image of the moment has become not just one of his most famous photos, but one of the most memorable sports photos of all time.