Lorenzen (shoulder) recently underwent a follow-up MRI and has been cleared to resume throwing, Mark Sheldon of MLB.com reports.
Lorenzen received a second platelet-rich injection at the beginning of May and will now begin a throwing program in Arizona following his encouraging MRI. The right-hander's return timetable will depend on how quickly he's able to ramp up, but he appears to be trending in the right direction.