Andy Dalton has officially been ruled out against the Steelers after injuring his thumb.
Dalton has never missed a start in his five NFL seasons, and he was under center for the Bengals' first drive Sunday against the Steelers. But on 1st and goal, Dalton tried to throw a screen pass to Giovani Bernard that was intercepted by defensive end Stephon Tuitt. Not only did the play kill a likely scoring opportunity for the Bengals, but Dalton appeared to injure the thumb on his throwing hand when he tackled Tuitt following the pick.