Here's a look at a key matchup heading into Sunday's Week 12 battle between the Eagles and Bears at Soldier Field.
Eagles WRs DeSean Jackson and Jeremy Maclin vs. Bears' secondary
It would seem that the Bears are better equipped to defend the Eagles' passing attack than some other teams because of their cover-2 zone base and speed on defense. Those factors no doubt help the Bears, but having two deep safeties may not be enough to stop Philadelphia from testing them downfield and making long gains.
Jackson is more of a deep threat — he averages almost five yards more per catch — but Maclin also has rare speed. They both have touchdown catches of more than 80 yards this season, and Jackson beat Chicago's cover-2 for a 48-yard TD when the two team's met last season.
One of the strengths of Bears S Danieal Manning's game is speed as well, and he's done a good job of patrolling his half of the field of late. CB Tim Jennings also has good speed and tackles well.
The Bears could run into trouble if CB Charles Tillman or S Chris Harris is targeted, though. They are not as fleet of foot and could be exposed in coverage. Rookie FS Major Wright, who has played in each of the past three games since returning from a hamstring injury, could get subbed into the game for Harris more often than he had been if Harris struggles. He doesn't have Harris' veteran savvy, but Wright is the quicker player.