Chicago Bears - Wikipedia
Ditka's 89 to be last in long line of Bears' retired numbers
Chicago Bears announce plans to retire No. 89 jersey of ESPN analyst Mike Ditka on Monday Night Football - ESPN Front Row
Chicago Bears retire Mike Ditka's number
Brian Urlacher Chicago Bears Nike Women's Retired Game Jersey - White
Ranking the 100 best Bears players ever: No. 11, Mike Ditka
Chicago Bears great Mike Ditka turns 80
Jan. 20, 1982: Bears' coaching drama comes to end — it's Mike Ditka – Orlando Sentinel
The 50-Year Plan: how the Bears can unretire numbers and honor more legends - Windy City Gridiron
Bears will retire Mike Ditka's No. 89 on Dec. 9