ランシング・ラグナッツ
Mármol was signed by the Chicago Cubs as an amateur free agent on July 3, 1999 as a catcher/outfielder. In his last season as a hitter, in 2002, he batted .258 with a .271 OBP for the Arizona League Cubs in the Rookie League, and .149 with a .167 OBP for the Lansing Lugnuts in the Midwest League.