Josh Beckett entered Sunday's game looking for his eighth win against no losses.
Down by a score of 2-0 after pitching four innings, Beckett was removed because of a torn flap of skin on his right middle finger.
The Red Sox rallied from a 5-0 deficit in their last turn at bat in the bottom of the 9th inning to beat the Orioles 6-5.
Beckett Leaves With Finger Injury