After completing the 22-yard throw to Emmanuel Sanders, Roethlisberger jumped into the arms of offensive tackle Flozell Adams. Roethlisberger then began walking forward and appeared to say something to Seymour, who turned and struck the quarterback in the jaw with his open right hand.
As Roethlisberger went to his back, lineman Chris Kemoeatu grabbed Seymour. Both Seymour and Kemoeatu drew penalties, but only Seymour was ejected.
Seymour also was ejected Dec. 27 for hitting Cleveland Browns running back Jerome Harrison after a play was over. Seymour was fined $10,000 for that infraction.
Copyright 2010 by The Associated Press