A fastball that cracks 165 m.p.h. A devoted student of "yogic mastery." A name like "Hayden Siddhartha Finch." A baseball player like that has to be too good to be true — and he was. Sidd (for short) was merely the figment of Sports Illustrated writer George Plimpton's imagination. That was enough to get him a 1985 article in the magazine. Mets coach Mel Stottlemyre got in on the ruse, posing for a photo talking to "Sidd," who was actually an art teacher masquerading as the fake baseball player.