THREE THINGS THAT NEED TO GO RIGHT ...
The defense needs to finish. The Ravens have tripped up defensively at the end of both meetings with the Steelers. In Week 4, backup running back Mewelde Moore caught a 24-yard pass to set up a 46-yard field goal in overtime. In Week 15, Santonio Holmes' controversial 4-yard touchdown with 43 seconds left capped a game-winning, 92-yard drive.
Joe Flacco has to go deep. The Ravens' rookie quarterback has developed into a consistent deep passer, connecting on eight throws of 30 yards or more in the past three weeks. Flacco has completed no passes of more than 30 yards in two games against Pittsburgh.
Force turnovers on defense. The Ravens are 10-2 this season when forcing multiple turnovers.
... AND THREE THINGS THAT COULD GO WRONG
Injuries take their toll. What happens if the Ravens can't generate any pass rush without banged-up linebacker Terrell Suggs? Or if the Steelers target fill-in cornerback Frank Walker?
Willie Parker runs wild. The Steelers are 6-0 when Parker gains at least 70 yards. Though the Ravens usually shut down Parker, they didn't look like the typical run stoppers against Titans running back Chris Johnson.
Holmes continues his hot streak. While most of the Ravens' attention is directed at Hines Ward, the other wide receiver is causing most of the damage. In his past four games against the Ravens, Holmes has averaged 72.5 receiving yards and has scored five touchdowns.