Lackey diagnosed with biceps strain

Red Sox starter John Lackey left Saturday's game in Toronto in the fifth inning after going down in pain after throwing a pitch that ran in on Blue Jay's SS Jose Reyes.  Lackey went down holding the bicep area of his arm immediately after throwing the pitch.  He is currently diagnosed with a biceps strain, and he is due to have an MRI on Sunday.  I feel bad for Lackey.  He worked so hard to come back from Tommy John, and now he may have another injury on his throwing arm.