 Chico was selected by the Arizona Diamondbacks in the third round of the 2003 amateur draft.Chico began the 2006 season pitching for Lancaster of the high Class A California League, where he accrued a 3-4 record and a 3.75 ERA in 10 starts.He was promoted to the Tennessee of the Class AA Southern League, accumulating a win-loss record of 7-2 and an ERA of 2.22 in 13 starts.