Placed RHP Matt Miller on the 15-day Disabled List (elbow)
Recalled LHP Rafael Perez from Akron (AA)
Perez is probably a stopgap until they can get someone else there. I believe Rafael is scheduled to start tomorrow for Akron, so he'll serve as the long-man in case the game gets out of hand.
As for Miller, the prognosis doesn't look good if you read between the lines:
Miller missed the second half of last season with a sore right elbow.
Hopefully this doesn't mean season-ending surgery, but it sure looks that way.