KO Knockout Boxing Magazine Marvin Hagler Cover Duran Comacho December 1983. Nice used condition. Cover is nice with very minimal wear and pages are nice. Features articles, information and details from the professional boxing scene in 1983. Marvin Hagler, Roberto Duran, Hector Comacho, and More....plus a color pin up of Thomas Hearns. Comes as seen in the pictures.