Mets' Hefner diagnosed with fracture, torn UCL

Jonah Birenbaum

Less than one year after undergoing Tommy John surgery, New York Mets right-hander Jeremy Hefner appears headed for another major elbow operation, according to ESPN's Adam Rubin.

Hefner was lifted from his rehabilitation start Aug. 6 amid "soreness" in his forearm and was promptly shut down by the club and sent to New York for further examination.

The 28-year-old was subsequently diagnosed with a torn ulnar collateral ligament, and is presumably poised to undergo the second Tommy John surgery of his career.

Selected in the fifth round of the 2007 draft, Hefner crafted a 4.34 ERA (83 ERA+) across 23 starts and one relief appearnce for the Mets in 2013.