Task: Question Answering
Input (English): Context: Behind a fierce defense and a poised rookie quarterback in Joe Flacco , the Ravens were game . Baltimore took a 13 - 3 lead after tight end Daniel Wilcox caught a 4-yard touchdown reception . Flacco tried to his best to outduel Roethlisberger to become the first rookie quarterback to win his team 's first three games since Greg Cook did it in 1969 . 
Question: What was the reason that Joe Flacco had not played as quarterback in   the NFL before this year ?
Output (English): He had just got drafted in the NFL .