Superman vs. Muhammad Ali / Denny O'Neil, Neal Adams, co-plot and writing ; Neal Adams, art ; Dick Giordano, Terry Austin, inkers ; Gaspar Saladino, letterer
"Superman created by Jerry Siegel and Joe Shuster."
"Originally published in single magazine form in All-new collector's edition vol. 7 no. C-56."
Together, the Man of Tomorrow and the Champ are two of the mightiest warriors the Earth has ever known. Now they must face their greatest challenge yet: each other!