Ravens vs. Bears: 3 things that need to go right

1. Finish off the Bears. In its past five games, Chicago has been outscored 30-0 in the fourth quarter. The Ravens have scored 100 points in the fourth quarter, their most in any quarter this season.

2. Run the ball. The Ravens have averaged 158 rushing yards in December since 2007, which is tops in the NFL in that span. Without linebacker Brian Urlacher, Chicago's defense ranks 24th against the run.

3. Stop Chicago in the red zone. The Bears have the sixth-worst offense inside the 20-yard line, scoring 18 touchdowns on 40 red-zone series. The Ravens' defense is the league's sixth best in the red zone.

- Jamison Hensley