Fitts was removed from Saturday's game against the White Sox due to right shoulder pain, Chris Cotillo of MassLive.com reports.

EDGE Analysis

Fitts had been cruising through his start Saturday, giving up just two hits and a walk while striking out five batters across five shutout frames. He came back out to start the sixth inning but only threw a couple of pitches before grabbing at his underarm/shoulder area. Fitts will return to Boston on Sunday to undergo an MRI on his shoulder to determine the severity of the injury, per Cotillo.