CINCINNATI, Ohio (USA TODAY) -- The Pittsburgh Steelers suffered a potentially devastating loss early in Monday night's game at Cincinnati.

Pro Bowl linebacker Ryan Shazier, Pittsburgh's leading tackler, slumped to the turf in the first quarter after attempting an awkward tackle that appeared to involve the crown of his helmet.

Trainers worked for several minutes on Shazier, who was eventually strapped to a backboard and carted off the field at Paul Brown stadium.

Shazier, who didn't appear to be moving his legs, covered his head with his hands as he exited.

Steelers players and coaches looked concerned, and Bengals quarterback Andy Dalton offered encouragement to Shazier as he was taken from the field.

The Steelers later said Shazier was taken to a nearby hospital in an ambulance. He was ruled out for the remainder of the game.