The Red Sox optioned Uberstine to Triple-A Worcester on Monday.
Uberstine was unlikely to be available to pitch for another day or two after tossing 2.2 innings and 45 pitches in relief during Sunday's loss to the Padres, so the Red Sox will send him back to the minors to clear room on the active roster for right-hander Garrett Whitlock (personal), who was reinstated from the paternity list. Once he's back in Worcester, Uberstine will likely settle back into the rotation after making his MLB debut out of the bullpen.
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Red Sox's Tyler Uberstine: Dealt loss in MLB debut
Rotowire
Uberstine (0-1) was the pitcher of record in Sunday's 8-6 loss to the Padres after allowing one run on three hits and one walk while striking out two over 2.2 innings of relief.
Uberstine made his MLB debut and pitched two scoreless innings before Jackson Merrill drove a fastball over the fence to lead off the eighth. The right-hander also walked a batter and gave up a double later in the frame. Overall, Uberstine threw the ball well and filled up the zone (45 pitches, 34 strikes), but the mistake pitch to Merrill proved to be costly. Uberstine, who had been used as a starter in the minor leagues, is expected to provide length out of the bullpen while he's up in the majors.
