LA Galaxy and former US Men’s National Team midfielder Pablo Mastroeni announced today that he is retiring from the game.

The 37-year-old leaves a legacy that includes a Supporters Shield in 2001, a MLS Cup championship in 2010 with the Colorado Rapids, nine MLS All-Star appearances and two World Cups.

In his 16 year career, Mastroeni appeared in 334 regular season games and started 316 of them.

“After spending the last 16 years playing in Major League Soccer and with the U.S. National Team, I have decided that this is the appropriate time to retire from the game,” Mastroeni said. “I am honored to have spent my entire professional club career playing in MLS and I now look forward to watching this league continue to grow as I begin the next stage of my life.”

Mastroeni ended his career with the LA Galaxy, to whom he was traded in mid June and went on to play nine regular season matches and three CONCACAF Champions League games. Prior to that he spent 11 years with the Rapids, where he went in 2001 after the Miami Fusion were contracted.

Mastroeni spent four years with the Fusion, where he was drafted 2nd overall following a successful college career at North Carolina State. In Miami he appeared in 100 regular season games while in 2001 he earned a spot on the MLS Best XI while helping the Fusion claim the Supporters’ Shield.