Collectors rarely get a fighter's chance at owning a baseball signed by a boxing legend. Now this extremely rare crossover from the 1950s can be yours! Heavyweight Champion Rocky Marciano, who held the title for over three-and-a-half consecutive years and won all 49 of his bouts, autographed this official National League (Giles) baseball. Marciano played some serious amateur baseball as a catcher before choosing his career as a fighter. The ball is VG with a light but readable signature that rates 4/10, signed in steel tip fountain pen. The ball exhibits some scuffing. Comes with a JSA LOA.