Mets pitcher Johan Santana throws a bullpen session in Port...

Mets pitcher Johan Santana throws a bullpen session in Port St. Lucie, Fla. It was first time the two-time Cy Young Award winner has thrown off a mound since pitching four innings in an instructional league game on Sept. 30, 2011. Santana had surgery on his left shoulder in September 2010 has not pitched in a major league game since. (Feb. 17, 2012) Credit: AP

Johan Santana threw off a mound in Port St. Lucie, Fla., on Friday -- the first time he's done that since last year as he rehabs from a shoulder injury that cost him the entire 2011 season.

Santana and manager Terry Collins talk about the day in audio clips from their session with reporters in the video embedded above.

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