Felix Doubront (shoulder) struck out 10 and didn't allow a hit over five innings in a rehab start with Triple-A Pawtucket Sunday. Doubront walked four, needing 93 pitches to cover the five frames. Still, it has to be considered a positive showing for the left-hander in what is expected to be his final rehab start. Brandon Workman or Rubby De La Rosa are likely to be bumped from the rotation later this week to make room for Doubront.