Well, this isn't good news but explains why we didn't see Miller in the game at all today:
Girardi: Andrew Miller going to DL with strained muscle in forearm. Dellin Betances will slide in as the regular closer.
— Bryan Hoch (@BryanHoch) June 10, 2015
Miller's injury is in the muscle beneath the elbow. Didn't mention it until after last night's appearance.
— Lohud Yankees Blog (@LoHudYankees) June 10, 2015