Andy Martino of the Daily News is reporting that John Maine underwent arthroscopic surgery to clean out scar tissue from his right shoulder, and will miss the remainder of this season.

John Maine had arthroscopic surgery yesterday to clean scar tissue in his right shoulder. Out for season.

Maine was last seen pitching in a game against the Nationals on May 20. In that game, he was removed by Jerry Manuel after making just five pitches.

Despite saying that he was okay and having harsh words for both Dan Warthen and Manuel, he was placed on the disabled list two days later. Pitching coach Dan Warthen later said Maine was in denial, calling him a “habitual liar” regarding his shoulder being okay.

Maine finishes the season with a 1-3 record and a 6.12 ERA in 39 2/3 innings over nine starts.

He will surely be non-tendered after the season, so this probably ends his career as a Met, a career that began with such promise, but ended with a rash of poor performances and a few unfortunate injuries.

Update from Adam Rubin:

A little side note to this is that the surgery was performed by Dr. Michael Ciccotti in Philadelphia, near where Maine’s agent, Rex Gary, is based, rather than by doctors from the organization’s Manhattan-based Hospital for Special Surgery.