Pittsburgh Steelers quarterback Ben Roethlisberger has left the game against the Kansas City Chiefs late in the third quarter after thrown a short touchdown pass to wide receiver Antonio Brown.
Roethlisberger walked off the field under his own power and went straight to the locker room.
Backup quarterback Bruce Gradkowski is warming up. The Steelers lead the Chiefs 17-6.
UPDATE: Roethlisberger has returned to the sideline and he is probable to return.