What position did Ben Roethlisberger primarily play?

What position did Kurt Warner primarily play? Kurt Warner is best known for playing with which NFL team? Which college was Kurt Warner playing for when he entered the NFL? What jersey number did Kurt Warner wear with the Rams? Ben Roethlisberger is best known for playing with which NFL team? Which college was Ben Roethlisberger playing for when he entered the NFL? What jersey number did Ben Roethlisberger wear with the Steelers? What position did Philip Rivers primarily play?