Chicago Bears: Brian Urlacher heads out the door – Twin Cities
Things change with Brian Urlacher out; are Bears better or worse?
Brian Urlacher officially announces retirement from the NFL - Windy City Gridiron
Brian Urlacher Retires After 13 Seasons With Bears - The New York Times
Brian Urlacher, a throwback player, retires in a thoroughly modern way - Newsday
Bears great Brian Urlacher a first ballot Pro Football Hall of Famer
Chicago Bears' long lineage of linebackers
Top 10: Linebackers in Bears history
Chicago Bears: 15 greatest linebackers in franchise history
10 Best Chicago Bears Linebackers of All Time - Sports Illustrated
Urlacher to be honored at home opener
Brian Urlacher met lofty standards set by Bears linebackers
Brian Urlacher says contract offer from the Bears was an ultimatum