Booser (elbow) struck out a batter and gave up one hit in a scoreless inning in his rehab appearance Saturday with Double-A Portland.
Booser began his rehab assignment Aug. 29 with Triple-A Worcester, but he took a one-week break before making his return to game action this weekend, albeit at a different affiliate. The left-hander looked sharp Saturday and may require just one or two more appearances in the minors before returning from the 15-day injured list.