While Chicago's bookend corners of Charles Tillman and Nathan Vasher co-starred in the teams' first matchup with game-changing and game-clinching interceptions, respectively, the newly minted Pro Bowl tandem of Urlacher and Briggs were disruptive from start to finish all over the field. Each had 16 tackles and combined for five pass breakups, including one by Urlacher while he ran stride for stride with RB Tony Fisher on a deep sideline pass. The hard-hitting Briggs put TE Bubba Franks on the sideline early in the game, and Franks has yet to return because of lingering neck and back soreness.
Packers CB Al Harris vs. Bears WR Muhsin Muhammad
Harris held Muhammad to zero catches in the first game, with just four passes thrown in the direction of the Chicago playmaker. Having been denied his first Pro Bowl spot Wednesday, Harris could be playing with a chip on his shoulder. More passes figure to be thrown Muhammad's way now that Rex Grossman is at quarterback. Harris, though, surprisingly struggled in defending Baltimore's Derrick Mason on Monday, getting beat twice for big catches.
Other key matchups:
-- Bears QB Rex Grossman, making his first start in 15 months, vs. Packers standout rookie FS Nick Collins
-- Packers QB Brett Favre, who has tossed an NFL-worst 24 interceptions, vs. a Bears defense that is No. 1 in points, total yards, first downs, passing yards and average gain per pass allowed.