Pomeranz (forearm) allowed two runs on four hits over 5.1 innings in his rehab appearance with Double-A Portland on Friday, Ian Browne of MLB.com reports.
Pomeranz illustrated better control -- he walked six in his first rehab appearance Sunday -- but still issued three walks Friday for Portland. The 29-year-old seems likely to return to the Red Sox starting rotation sometime in the back half of next week after his tuneup appearances in the minors.