The Last Rookie 20-Game Winner

Today's trivia question:  Who was the last rookie pitcher to win 20 games in a season?

Hint to today's question-- This National League left-handed rookie went 20-9 in 1985, but never had another 20-win season.

Answer to the previous trivia question---The two catchers were Ivan Rodriguez and Mike Piazza.  In 1999, Rodriguez had 116 runs scored and 113 RBIs with the Texas Rangers and Piazza drove in 124 and scored 100 runs with the Mets that same year.  Piazza also did the 100/100 thing with the Dodgers in 1997.  

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