 Larry Johnson recovered from his facemask tackle from Antrel Rolle and started as running back.Ben Roethlisberger threw his first touchdown of the season as the Chiefs defense gave up 372 total yards in the first half, allowing 17 first downs.Cornerback Ty Law made a costly error in the opening series by slipping on the turf, allowing Santonio Holmes to gain 50 yards on the third play of the game.