Ben Roethlisberger carted to locker room with apparent knee injury

Steelers quarterback Ben Roethlisberger has exited today’s game in St. Louis with an apparent left knee injury. Roethlisberger dropped back to pass, felt some pressure and tried to step forward in the pocket just as he got hit low by Rams safety Mark Barron. Roethlisberger immediately dropped the ball and fell to the ground clutching…