O'Neill has been sent back to Boston to receive imaging on his sore right knee, Ian Browne of MLB.com reports.
Advice: Red Sox manager Alex Cora indicated that it's more for peace of mind than a worry that O'Neill is dealing with a significant injury, but it's still not an encouraging development. O'Neill is missing a third straight start Tuesday, and it's safe to assume he won't play in the series finale in Baltimore on Wednesday, either. The Red Sox will begin a homestand Thursday versus the Tigers.
Rotowire.com
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