I'm thinking put one in his ear and hope that he starts a fight. Sure, he might hurl your starting pitcher into outer space. But then the Man of Steel would get tossed out of the game and you would be done with him.
Either that or a split-finger Kryptonite fastball.
Intentional walks wouldn't work because he could hit anything.
Is the catcher's glove in proper position to have caught the ball?