Muhammad Ali: 1942-2016 (30 images)

Muhammad Ali rocks George Foreman with a hard right during their heavyweight title bout on October 29, 1974, in Kinshasa, Zaire. Ali knocked Foreman out in the 8th round to regain his heavyweight crown. UPI File Photo

Portrait of the heavyweight champion of the world as a very young man. Cassius Marcellus Clay II (Muhammad Ali) is shown here at age 12 as he begins his boxing career. Even then, Policeman-Boxing instructor Joe Martin recalled, Cassius "always talked a good fight." UPI File Photo

George Foreman looks up from flat on his back after Muhammad Ali knocked him down in the 8th round of their October 29, 1974 fight in Kinshasa, Zaire. UPI File Photo

Cassius Clay (Muhammad Ali) is seen here at a press conference in Chicago, Ill., on November 18, 1963. UPI File Photo