Brian Urlacher says he's retiring from NFL
Brian Urlacher officially announces retirement from the NFL - Windy City Gridiron
Brian Urlacher gets his just due with Hall of Fame honor
Brian Urlacher talks about the Chicago Bears letting Roquan Smith go
Images: Brian Urlacher Through The Years
Brian Urlacher update: Bears legend will not return to Chicago in 2013 - Windy City Gridiron
Debating greatness: Urlacher vs. Lewis - ESPN - Chicago Bears Blog- ESPN
Brian Urlacher has 'no issues' betting against Chicago Bears
Brian Urlacher a legend, but retirement comes at right time - Sports Illustrated
UNM makes exception, will retire Urlacher's number
Bears' Brian Urlacher announces retirement
Chicago Bears, Brian Urlacher: The Urlacher Era Is Over in Chicago - WSJ