NEW YORK (WFAN) – More injury news for the Mets.

Ace Johan Santana threw 15 pitches off a mound in Port St. Lucie. This is the first time Santana has thrown from the mound since undergoing Sept. 14 surgery to repair a torn anterior capsule in his left shoulder.

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The Mets have been hoping Santana will return to the majors in July.

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Pitcher Chris Young has opted to undergo surgery to repair a re-tear of the anterior capsule in his right shoulder.

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He will miss the remainder of the season.