But at his 1970s peak, this elite boxer beat George Foreman, Ron Lyle and lost some highly dubious decisions (including to an ageing Muhammad ... with an angry Mike Tyson. Ouch.
Rocky Marciano, Joe Frazier, Buster Douglas, Liston, Foreman, Tyson and Ali are all some huge names who have also held all the available titles. Here, talkSPORT.com gives you a rundown of all ...