Dick Butkus, fearsome Hall of Fame Bears linebacker, dies at 80
Washington University to retire Shelby Jordan's number, MO State News
A Numbers Game: A look at how every Cubs player — and the manager — picked their jersey number - Marquee Sports Network
Ron Parker Leads the Way - TCU Magazine
Da Greats: Retired Chicago Bears Jersey Numbers - The Chicago Audible
Bear trouble spreads in the French Pyrénées: Pt.1
Ditka's 89 to be last in long line of Bears' retired numbers
Solved A couple will retire in 50 years; they plan to spend
Chiefs, Packers to have NFL preseason games on St. Louis TV
List of National Football League retired numbers - Wikipedia
Ask The Old Guy: Moving forward after a rough start