Down a touchdown and with the Broncos driving, Pittsburgh's Ryan Mundy and Cameron Heyward wrapped up Denver running back Willis McGahee and knocked the ball loose at midfield. It appeared Mundy chopped down and forced the fumble. An animated GIF of the play below:
Down seven, the Steelers capitalized on the giveaway to tie it up at 23-23. On two consecutive plays, Ben Roethlisberger threw it from the 31 yard line into the end zone. On the first play, it appeared that Champ Bailey would easily intercept Big Ben and force a touchback. But the ball went right through the hands of the veteran cornerback. With new life, Big Ben would scramble to his right on the subsequent play and hit Jerricho Cotchery crossing the end zone to tie it up. Ben broke the pocket on his gimpy ankle and fired a rope to the end zone.
Video of the touchdown throw to Cotchery below: