The Ravens caught the Steelers when Ben Roethlisberger was just back from his knee injury. Roethlisberger was rusty and Baltimore won, 21-14, in Week 9.

Things are much different now. Roethlisberger is healthy and plays much better at Heinz Field where he's thrown 17 touchdown passes with just three interceptions. The Ravens have a strong run defense, but their secondary is vulnerable especially with top cornerback Jimmy Smith not likely to play.

If the Ravens drop safeties into coverage then Le'Veon Bell is primed for a big game. If the Ravens key on Bell than Roethlisberger gets turned loose. Antonio Brown should prove highly dangerous here especially if Smith is out as expected.

The Ravens lack a consistent ground attack and Joe Flacco is enduring one of his worst seasons. He's been especially brutal on the road with a 5-to-7 touchdown-to-interception ratio. The Steelers have held six of their last seven opponents to under 250 yards through the air. Their defense has gotten healthy and stepped up.

The Steelers not only play much better at home, but they have proven strong in December covering 12 of the last 14 times.