That Time the NFL Paid Jack Kirby to Design an Intergalactic Super Bowl
“At the height of his power in the 1970s, Kirby was commissioned for a feature in the October 21, 1973 issue of Pro! Magazine, the official publication of the National Football League. At the time, Kirby had switched to DC comics from Marvel, and presumably had a little spare time to pick up extra commissions. Hyperbolically titled “Out of Mind’s Reach,” Kirby’s collection of art depicted a future pro football match and debuted bizarre new costume designs for four different teams.
Full article is here. Art for the intergalactic Super Bowl can be seen here.