Durkin's Playbook: Breaking Down Vic Fangio's Defensive SchemeFangio's 3-4 base is predicated on physical and instinctive play up front.
Bears-49ers: 5 Matchups To WatchEach team's tight end is worth keeping an eye on Sunday night.
Durkin: Know Your Opponent -- San Francisco 49ersInjury and suspension have left the 49ers defense shorthanded, but it's still stout.
NFC All-Pro Selections - DefenseDefense wins championships. But these days it's a certain kind of defense. Check out our NFC all-pro defense to see who excels.
Harbaugh Undergoes 'Minor Procedure' For Irregular HeartbeatSan Francisco 49ers head coach Jim Harbaugh underwent "a minor procedure" Thursday at Stanford Hospital for an irregular heartbeat.