Gustavo burst out onto the major league scene as a 24 year old, relative unknown in 2005. His 34 starts were tied for the third most in the AL and he went 13 – 9 in 203 innings. He finished 5th in Rookie Of The Year voting, receiving 10% of the total vote and 2% of the first place vote. Prior to that magical season, in 2004, he had pitched 167.1 innings at 3 separate levels. And prior to that, in 2003, he pitched only 69.1 innings total.
He hurt his wing early in the 2006 campaign and has not returned to form since.
