5:52pm: A team source told Rubin that the Mets are expected to non-tender Pelfrey after the season. Tommy John rehab usually takes 12 months, but the non-tender deadline is December 2nd this year.
MONDAY, 4:33pm: Assistant GM John Ricco confirmed to Adam Rubin of ESPNNewYork.com that Pelfrey will undergo Tommy John surgery tomorrow (Twitter link).
THURSDAY: Mets right-hander Mike Pelfrey is expected to miss the rest of the 2012 season to undergo and recover from Tommy John surgery. Manager Terry Collins told reporters that Pelfrey will likely have ligament replacement surgery, Andy Martino of the New York Daily News reports (Twitter links). Pelfrey himself says there's a 99% chance he'll have the operation, according to Martino.
This could represent the end of Pelfrey's Mets career. He'll earn $5.68MM in 2012 and the Mets would have to offer a similar salary to retain him for 2013. As Matt Swartz showed earlier today, injured players don't generally take pay cuts in arbitration, so the Mets might prefer to non-tender their 2005 first round selection instead. The 28-year-old had pitched well in three 2012 starts and owns a 4.36 ERA with 5.1 K/9 and 3.2 BB/9 in parts of seven MLB seasons. Scott Boras represents Pelfrey, who is under team control through 2013.
Mike Axisa contributed to this post.