Felix Doubront spent the winter focusing on cardio work to increase his stamina and leg strength, and strives to pitch 200 innings during the 2013 season. Doubront is coming off a career-high 161 innings from a season ago, and is already experiencing some weakness in his throwing shoulder early in spring camp. As long as he's healthy, Doubront possesses strong strikeout ability and could be a solid sleeper in the later rounds of fantasy drafts.