Pittsburgh Steelers quarterback Ben Roethlisberger will miss "at least" four weeks in with a knee injury, according to Adam Schefter of ESPN.com.
He will undergo an MRI on Monday with the hope that his ACL is "intact," per Schefter.
Roethlisberger was injured during Sunday's 12-6 Pittsburgh win over St. Louis.
On the play in question, Roethlisberger dropped back to pass and the pocket collapsed around him. Rams safety Mark Barron came rushing through a hole in the line and appeared to fall as he grabbed at Roethlisberger to make the tackle.
The quarterback's leg got caught under the weight of Barron's body and twisted awkwardly. He fell to the ground and was subsequently carted off.
Backup quarterback Michael Vick entered the game for Pittsburgh thereafter.
The injury to Big Ben has implications not only in the AFC North race, but also for the Ravens directly. Baltimore is set to play the Steelers on Thursday in Pittsburgh.
Check back to CSNmidatlantic.com for more as this story develops.