The Mets have placed Jeremy Hefner on the 15-day DL with a partially torn medial collateral ligament in his elbow, the team announced. That's different than the ulnar collateral ligament, which is better known as the Tommy John surgery ligament.
Hefner, 27, was optioned to Triple-A Las Vegas on Sunday, but the move was rescinded and he has instead been placed on the Major League DL. The DL stint is retroactive to Saturday. Manager Terry Collins tolds reporters he expects the right-hander to return this season.
In 23 starts (and one relief appearance) prior to the injury, Hefner went 4-8 with a 4.34 ERA and a 1.29 WHIP in 130 2/3 innings. During one stretch from the start of June through the All-Star break, he pitched to a 1.76 ERA with a 5.00 K/BB ratio in eight starts and 51 innings.
The Mets were briefly using a six-man rotation, so they will simply go back to the usual five-man setup without Hefner. Their starters at the moment are Matt Harvey, Zack Wheeler, Jon Niese, Dillon Gee and Jenrry Mejia.