Miley's MRI showed a slight tear in his left groin after being diagnosed with a strain following Wednesday's game, Todd Rosiak of the Milwaukee Journal Sentinel reports.

Miley stated that he's unsurehow long he might be sidelined and the club has yet to release any sort of expected return date for the southpaw, but recovery timetables for these injuries are usually measured in weeks rather than days. With that in mind, the Brewers will have to decide if Miley is worth adding to their 40-man roster, as he's set to receive a $100,000 retention bonus if he's still on the team by Saturday. Miley had been having an impressive camp with Milwaukee thus far, and said that he wants to remain with the club, but it seems unlikely that the team would add him to the roster and the disabled list in the event that this injury forces him to miss an extended period of time. Expect an update on this situation in the coming days.