Kevin Mulvey, the Mets' top pick in the 2006 draft (second round), retired after Saturday's Double-A Binghamton game, two sources told ESPNNewYork.com.
Mulvey, who hails from Parlin, N.J., had been pitching in relief for the B-Mets this season. He had a 5.59 ERA in 13 appearances.
The 27-year-old right-hander had been traded to Minnesota along with Carlos Gomez, Philip Humber and Deolis Guerra in the trade that landed Johan Santana. He returned to the organization late in spring training after being released by Arizona.
Mulvey appeared in a combined 10 games (four starts) with the Twins and Diamondbacks at the major league level, going 0-3 with a 7.90 ERA.