 After shoulder surgery in 2003, he made his major league debut with the D-backs on September 9, .He went 1–1 with a 4.62 earned run average in six appearances (four starts) for the season.He split between the Diamondbacks and their AAA affiliate, the Tucson Sidewinders, going 0–3 with a 4.45 ERA in 13 appearances (five starts) for Arizona.