All New Collectors' Edition (1977-1980) #56

The greatest heavyweight prizefight in the history of comics is returning in facsimile edition! With a space armada threatening to destroy the Earth if it loses a contest against the evil Rat'lar's chosen fighter, Superman and Muhammad Ali must first box each other to deter-mine humanity's champion for that intergalactic bout. Includes the iconic wraparound cover by Neal Adams with a who's who of famous people (and comic book creators) in attendance at the fight of the century.