Mets' Jenrry Mejia done for season

NEW YORK -- Rookie right-hander Jenrry Mejia has been shut down by the New York Mets for the remainder of the season with a strained muscle in his shoulder blade.

Mejia, 20, was forced to leave Wednesday's game against the Pittsburgh Pirates after flinching during a third-inning pitch that he bounced to Andrew McCutchen. A subsequent MRI exam at the Hospital for Special Surgery in Manhattan revealed a rhomboid muscle strain, the team announced.

Mejia began the season in the Mets' bullpen before being dispatched to Double-A Binghamton in June to resume working as a starter and hone his curveball and changeup. He had returned to the Mets Wednesday and was making his third start.

Mejia, the organization's top pitching prospect, should be a contender for a rotation spot next spring training. Mejia went 0-4 with a 4.62 ERA in 33 appearances (three starts) in 2010.

Mejia's next scheduled turn falls on a team off-day on Monday, so the Mets could elect to go with four starters in the short term. Beyond that, left-handers Pat Misch, Raul Valdes and Oliver Perez would be candidates to fill that spot during the season's final two weeks.

Adam Rubin covers the Mets for ESPNNewYork.com. You can follow him on Twitter.