 In three starts and six relief appearances, he pitched 33⅔ innings, compiling a win–loss record of 1–3 and an ERA of 5.08.During that time, he struck out 37 batters while issuing 16 walks.Estrada spent the 2006 season with the Rookie-level Gulf Coast League Nationals, and the Savannah Sand Gnats of the Class-A South Atlantic League.