Diamond Dust Spider-Man : Season 2 Episode 6

A baseball diamond and the spherical, baseball-sized Optimo Diamond at the Cosmopolitan Museum are connected in this episode as Peter, about to be the star pitcher in a collegiate baseball game, is obliged to don his Spidey-suit once to stop a rampaging ape at the New York City Zoo and again to thwart men in ape disguise at the museum from stealing the Optimo.