MRI coming for Roethlisberger

Steelers quarterback Ben Roethlisberger left Sunday’s game with a walking boot on his left foot.  Per a source with knowledge of the situation, Roethlisberger will get an MRI when the team returns to Pittsburgh.  (It’s unclear whether the MRI will be conducted tonight or in the morning.) The injury apparently happened on the Steelers’ second-to-last…