GLENDALE, Ariz. -- Dodgers pitching prospect Ross Stripling is being sent off for a contrast MRI after he experienced discomfort in his right elbow.Dodgers manager Don Mattingly said Stripling, in his first major-league camp, felt the pain five or six days ago and kept it to himself because he wanted to open some eyes. Stripling was ranked by ESPN's Keith Law as the Dodgers' No. 8 prospect. He was 6-4 with a 2.78 ERA at Double-A Chattanooga last season.