Pittsburgh Steelers quarterback Ben Roethlisberger left Monday night's game with an injury to his throwing shoulder.

The ESPN broadcast indicated that Roethlisberger already injured his rotator cuff, and he left the stadium to get an MRI done on the shoulder.

Byron Leftwich came off the bench to finish up for the Steelers, and was Pittsburgh's only other active quarterback for Monday night's game.

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Terry McCormick covers the Titans for TitanInsider.com