This is the pre-Crisis Earth-2 version of Sportsmaster, with his appearance from All-Star Comics #72. He uses the body of (of all things) an Avengers Red Skull, with greenstuff to make the padding, and the legs of a Mister Miracle, with some sports equipment coming from MLB Sportsclix 2005 figures: the bat and left hand from Laynce Nix and the head (with cap) from Jose Valentin. The anatomy ended up kind of weird ("Look how my leg can go!! Is that advantageous or what?!?"), but I'm pretty happy with how the jersey came out.
He is on the base of a veteran Trickster (who also provided Sportsmaster's right hand), with the shape change justified as representing super senses and the plasticity representing some kind of trap. He almost went on a rookie Trickster dial, but seriously, he was one of Alan Scott's major villains. As goofy as he may be by today's standards, I had to give him credit.
More Justice Society Villains