Bears 100th Season - Chicago Tribune
Four takes on list of top 100 Bears players
Walter Payton - Wikipedia
Ranking the 100 best Bears players ever: No. 15, Joe Stydahar
Ranking the 100 best Bears players ever: No. 12, Mike Singletary
Ranking the 100 best Bears players ever: No. 2, Dick Butkus
Chicago Bears - Wikipedia
Ranking the 100 best Bears players ever: No. 1, Walter Payton
List of best NFL players from Chicago area evokes epic all-era roster