6. Allen Bailey picked up a key sack

With the way the offense was playing, the Chiefs needed just a couple of stops by the defense in the second half to pull out the win on Sunday.

With the help of Allen Bailey's sack and subsequent loss of 10 yards on the play, the defense provided at least one stop that proved crucial late in the game.

On second down and with the Chiefs holding onto a 42-30 lead, Bailey bull-rushed the Steelers' Ramon Foster right into Roethlisberger's face, and with just over 10 minutes left in the game, the Steelers then faced a third-and-25, which they didn't convert and were forced to punt it back to the Chiefs.

After a couple of first downs on the Chiefs' ensuing possession, Steelers' defensive lineman Cam Heyward raced over and forced the fumble of Chris Conley right in front of the Chiefs' sideline on a pass out to the left.