Pittsburgh Steelers quarterback Ben Roethlisberger has been diagnosed with a shoulder sprain, according to head coach Mike Tomlin on Tuesday afternoon. As of this time, Roethlisberger is listed as questionable for Sunday's game against the Baltimore Ravens.

Tomlin stated that the shoulder sprain has been classified as a sternoclavicular joint sprain, often referred to as an SC joint sprain. The severity of the injury was not addressed during Tomlin's media availability, but a SC joint sprain was the same injury that ended Brett Favre's "Iron Man" streak in 2010, which was the first game he missed in his professional career.

Roethlisberger sustained the injury in the third quarter of Monday night's game against the Kansas City Chiefs when he was sandwiched by Chief linebackers Justin Houston and Tamba Hali.

If Roethlisberger is unavailable for Sunday's contest, Tomlin has already confirmed that backup Byron Leftwich will take over as the team's starting quarterback.