Pirates righty Brandon Cumpton underwent Tommy John surgery today, GM Neal Huntington told reporters including Bill Brink of the Pittsburgh Post-Gazette (via Twitter). The procedure had seemed a possibility since Cumpton went in to visit Dr. James Andrews last week.

The 26-year-old had been set to function as a useful depth piece for the Bucs after throwing 100 2/3 MLB innings in a swingman capacity over the last two seasons. Cumpton racked up a 4.02 ERA with 6.1 K/9 against 2.1 BB/9 over that run, which included 15 starts and seven relief appearances, but has been even better at Triple-A.