Pittsburgh Steelers quarterback Ben Roethlisberger says he's OK following a shot to the head during overtime of the Steelers' loss to the Kansas City Chiefs.

"Needless to say, it was a concussion-oriented thing, so I doubt he was going to come back into the football game," Steelers coach Mike Tomlin aid.

Roethlisberger said he's unsure if he suffered a concussion or not. He's expected to play in Sunday night's game against the Baltimore Ravens.

Roethlisberger took a knee to the head from linebacker Derrick Johnson during overtime.

If Roethlisberger is sidelined, then backup Charlie Batch would replace him.

Meanwhille, left offensive guard Chris Keomeatu sprained his right medial collateral ligament.

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