Prog 1’s Harlem Heroes* written by Pat Mills and Tom Tully and drawn by Dave Gibbons, specifically the uniforms of their opponents the Greek City Gladiators vs. Killerbowl by Gary K. Wolf cover (Doubleday, 1975) by Stephen Marchesi
Variant cover with grille facemask
Gary K. Wolf also wrote Who Censored Roger Rabbit? (St. Martin’s Press, 1981), which was the basis of the film Who Framed Roger Rabbit (Buena Vista Pictures Distribution, 1988).
Killerbowl was also almost certainly the inspiration for 2000 AD‘s The Mean Arena which debuted in prog 178, also scripted by Tully.
*Harlem Heroes was loosely based on the film Rollerball (United Artists, 1975), based on the short story Roller Ball Murder (William Morrow & Co., 1974) by the film’s screenplay writer William Harrison (1933–2013)