The White Sox transferred Hays (calf) to the 60-day injured list Tuesday.
Analysis:
The transaction frees up a spot on the 40-man roster for the addition of Braden Montgomery. Hays had a setback with his left calf while on a rehab assignment last week and remains shut down. He is now ineligible for activation until early July, and there is no timetable for the veteran outfielder.
