Browns QB Campbell suffers concussion
Campbell was hit from the side by blitzing cornerback William Gay, who came in untouched. Campbell was hit in the helmet and fumbled as he fell to the ground. Pittsburgh's Will Allen returned the ball 49 yards to set up a touchdown.
Campbell stayed on the turf for several minutes. As he was being treated by Cleveland trainers, Steelers quarterback Ben Roethlisberger came over to check on Campbell.
Campbell was examined on the sideline before he was carted to the locker room, his head slumped as he was driven off.
In the first half, Campbell left for one play after aggravating a rib injury.
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