Jurrjens: At the age of 25, Jurrjens was 12-3 with a 1.87 ERA at the 2011 midseason. He was named to his first All-Star Games and was beginning to establish himself as one of the league's top young pitchers. But he lost three of his four second-half starts, hindered by a bulky right knee that was surgically repaired the previous offseason. Last season, he spent the majority of the season in Triple-A and was 3-4 with a 6.89 ERA in 11 major league appearances. Jurrjens said he spent last season pitching with a brace on the knee and was set back by a quad injury. But if he's healthy, which he says he is, he could be a valuable starter for the Orioles.