Defensively the Bears aren't as concerned with sacking Lions QB Joey Harrington as they are with pressuring him into bad throws, which he's made plenty of this season, as evidence by his 13 interceptions, including two in the first game vs. the Bears.
MATCHUPS TO WATCH: The Bears' NFL-worst pass rush, which has accumulated just six sacks this season, vs. Lions' offense, which is No. 1 at preventing sacks.
Bears KR Jerry Azumah, who leads the NFL with a 30.2-yard average and took one back 89 yards for a score against the Lions two weeks ago, vs. a Detroit kick-coverage unit that ranks No. 30 in the NFL.
GAME PLAN: The Lions were successful with a conservative offensive game plan against Oakland, in part because the Raiders were unable to put together any kind of offense of their own. The Lions are likely to try to control the game and the clock running the ball but it's questionable if they can win without throwing the ball downfield at least occasionally.
MATCHUPS TO WATCH: Lions LB Earl Holmes vs. Bears RB Anthony Thomas -- Thomas didn't play in the game two weeks ago and the Bears still hurt the Lions with their running game. Holmes and the Lions must do a better job against the Chicago backs to control their share of the clock.
Lions PK Jason Hanson vs. Bears PK Paul Edinger -- With two teams not featuring a lot of offense, the PKs will be key. Hanson is 9-for-9, including three from 50 yards or beyond; Edinger is 16-for-17, including two from 50 and out.
INJURY IMPACT: CBs Doug Evans and Jacoby Shepherd played well with less than a week of practice after being signed to fill in for injured CBs Dre' Bly and Jimmy Wyrick. There is a good chance Bly will miss the Chicago game also, so the Lions will need help from the newcomers again. DE Robert Porcher (hip) sat out the Oakland win but the defensive line functioned well without him.