Oviedo (elbow) threw a live batting practice session Friday, Christopher Smith of MassLive.com reports.
Oviedo secured a spot in the Red Sox's Opening Day bullpen, making one 3.2-inning appearance March 30, but he hasn't pitched since due to a right flexor strain. Now that he's finally facing hitters again, Oviedo could be close to a rehab assignment. He'll need multiple appearances in the minors to knock off the rust.