More keys to Sunday's game

* In Rex Grossman's four worst outings -- including both losses -- the Bears quarterback has attempted 38.5 passes. But in his other seven games, Grossman has averaged 27.4 passes.

* In both Chicago losses, to the Miami Dolphins and the New England Patriots, the Bears trailed at halftime. And in two other games they arguably should have lost -- to the Vikings and the Arizona Cardinals -- the Bears also were behind after two quarters.
Against the New York Jets, the game was scoreless at halftime, and the Bears trailed 10-3 against the New York Giants.
But here are their halftime leads in other games:
16-0 against the Green Bay Packers
24-0 against the Detroit Lions
20-6 against the Seattle Seahawks
27-0 against the Buffalo Bills
41-0 against the San Francisco 49ers