DC Super-Stars #10 (1976)

The Great Super-Star Game / The Super-Athletes from Outer Space / The Fight for the Championship of the Universe
To settle an argument with the Sportsmaster, the Huntress forces eight super-heroes to join her in a baseball game against Sportsmaster and eight super-villains, with Uncle Sam and Amazo as umpires. Despite the bad guys' best efforts (not to mention cheating), the heroes come out on top, both in the game and in the subsequent battle.
Release Date: 1976