GLENDALE, Ariz. - Ross Stripling stood in the Dodgers' clubhouse at Camelback Ranch on Friday giving a demonstration to a group of reporters. His prized right elbow was dangling in the air with an imaginary baseball in his hand."They said it's really bad if I feel it here, in the back of my motion," the 24-year-old pitcher said, holding the arm at a 90-degree angle.