SB Nation's editorial staff picks the Steelers vs. Broncos matchup as one that could potentially be an upset. The Steelers enter the game as heavy favorites, but with a banged-up offense, nothing is impossible.
They now face a Steelers squad that is playing without starting running back Rashard Mendenhall and still has a slightly gimpy Ben Roethlisberger. I actually think they will be fine with Isaac Redman as their feature back, but it does open the door for some struggles. I think the Broncos can keep this a sufficiently low scoring game that an upset is very possible.
I think it's probably true that, while the Broncos aren't a particularly good team, the Steelers are more vulnerable than most of their fans acknowledge. It's also true that a low-scoring game is probably key to a Broncos victory. It's just tough to imagine a scenario in which the Broncos run away with this one, because the Pittsburgh defense is so much better than the Denver offense. It is, however, possible that the Broncos defense could keep this game close, particularly with Mendenhall out and Roethlisberger gimpy. If the Broncos can play a close game, they can definitely win. The Steelers are a much better team, but a loss here definitely isn't impossible.