A Chicago Bears Linebacker Has Emerged as the Heir to Dick Butkus
Bears' Brian Urlacher more concerned about knees than concussions
Brian Urlacher injury: Bears LB could miss rest of regular season
Bears' Brian Urlacher done – Boston Herald
Bears LB Urlacher out for season - The San Diego Union-Tribune
Bears LB Urlacher announces his retirement
Ex-teammates see Urlacher as Hall of Famer
Urlacher leaves team after mother's death
Bears LB Urlacher to retire
Brian Urlacher: Faking injuries was part of Bears' game plan - Los