Phillips (elbow) began a rehab assignment with Triple-A Oklahoma City on Thursday, yielding one hit and one walk over two-thirds of a scoreless frame.
Phillips struck out one batter and averaged 95.7 mph with his four-seamer, which is up 0.3 mph from last season. The righty is working his way back from Tommy John surgery and will likely need a fairly lengthy rehab assignment before rejoining the Dodgers' active roster.