10: Dick Butkus, The Top 100: NFL's Greatest Players (2010)
Bears Are Scoring at Will, and That's Just the Defense - The New York Times
Chicago Bears legend Dick Butkus dead at 80 - KESQ
Brian Urlacher's Top 3 Bears Linebackers of All-Time - Pro Sports Outlook
Bears Historical Fantasy Team: The Butkus-ers & Brown-nosers - Windy City Gridiron
ESPN Chicago Hall of Fame: Chicago Bears' legacy deep at middle linebacker - ESPN
Dick Butkus death: Former Chicago Bears player passes away at age 80
WCG Top 100 Chicago Bears players of all-time: 100-1 - Windy City Gridiron
Dick Butkus, Hall of Fame linebacker and Bears legend, dies at age of 80
Chicago Bears' long lineage of linebackers