Julie Jacobson/APRubby De La Rosa (20)The setup: De La Rosa was the Dodgers' Minor League Pitcher of the Year in 2010, but more than half of that season was spent with Single-A Great Lakes. At Double-A Chattanooga, he had a 1.41 ERA in eight starts covering 51 innings, but with a modest strikeout ratio of 6.9 per nine innings. He became the team's most exciting pitching prospect almost overnight, but there were questions about his lack of experience. At the end of Spring Training, De La Rosa made his Dodger Stadium debut with 5 2/3 innings of two-hit, no-walk shutout ball and six strikeouts (including Ichiro twice). Appetites whetted.The closeup: De La Rosa looked strong back in the Chatt room, with a 2.92 ERA and 52 strikeouts in 40 innings (51 baserunners allowed). In May, the Do