Baltimore Ravens running back J.K. Dobbins clutched his left knee after being tackled on a screen pass and was carted to the locker room in Saturday’s preseason finale against Washington.Baltimore Ravens running back J.K. Dobbins clutched his left knee after being tackled on a screen pass and was carted to the locker room in Saturday’s preseason finale against Washington.Read Morewww.espn.com – NFL