Switch Pitching 101

Screwball Grip of Hector Santiago The screwball enables pitchers to throw a ball that breaks away from opposite-handed hitters. It's moves in the opposite direction of a curveball. The Mystery of the Vanishing   Screwball By  BRUCE SCHOENFELD JULY 10, 2014 nytimes.com Hector Santiago of the Los Angeles Angels was sitting at a restaurant table in Glendale, Ariz., in March, holding an orange in his left hand. He formed a circle with his thumb and forefinger, then spread his remaining fingers around the fruit with half an inch between each one. He was demonstrating how he throws his screwball, which is the best in baseball mostly because nobody else has one.  The secret, he said, is to exert no pressure with the pinkie or ring finger. As he moved his arm forward in a slow-motion simulation, he pushed hard with his middle finger on the inside of the orange until much of his hand was beneath it, creating a clockwise spin. “Like driving on your right wheels ...