Martinez, 21, converted to pitcher in 2014 after previously serving as a shortstop. He spent the 2015 season with both the Dominican Summer League Mets and the Gulf Coast League Mets.
Between both teams, Martinez finished the year 3–0 with two saves and a 4.10 ERA in 18 games. He struck out 21 batters in 26 1/3 innings.
In July, Mets righthanded pitcher Jenrry Mejia was suspended 162 games without pay after a second positive test for Stanozolol.
Martinez’s suspension will begin at the start of the 2016 Gulf Coast League season.
- Christopher Chavez