The Red Sox have confirmed what was first widely speculated and then later acknowledged by Jacoby Ellsbury himself: the center fielder has a subluxed (dislocated) shoulder:
STATEMENT FROM THE BOSTON RED SOX REGARDING JACOBY ELLSBURY
Jacoby injured his right shoulder during yesterday’s game. An MRI was performed and showed findings consistent with a subluxed shoulder. We are in the process of gathering further information and determining the treatment plan. Jacoby will be placed on the 15-day disabled list prior to today’s game.
While each case is different, the recovery period being thrown around for such an injury is 4-6 weeks. More concerning, however, is the possibility that the injury could fail to heal with simple rehab, and may eventually require surgery if it proves difficult.
In the meantime, the Sox have called up Che-Hsuan Lin to provide added depth to the outfield.