A torn UCL sustained by Diamondbacks relief pitcher David Hernandez will probably require season-ending Tommy John surgery, per FoxSports.com, which is further reporting that a second MRI that reveals the same problem will clinch the need for the procedure.
The loss of Hernandez, whose fastball was peaking at 95 mph recently, could severely impact the Arizona bullpen. He was slated to serve as the setup man for new closer Addison Reed. That job is now likely to be given to J.J. Putz.
Hernandez regressed in 2013 after two fine seasons as a short reliever and part-time closer the previous two years, during which he struck out 175 in 130 2/3 innings and posted a 2.94 ERA.