Top 10 Most Feared Tacklers
Top 10: Linebackers in Bears history
Top 10: Linebackers in Bears history
The 10 Most Intimidating Linebackers in NFL History, News, Scores, Highlights, Stats, and Rumors
List of All Chicago Bears Linebackers, Ranked Best to Worst
Chicago Bears: The top-five most-feared players in history
Who are we entering the time machine for in order to bring them to play on this team? : r/steelers
Who is the most feared linebacker in NFL history? - Quora
Ladies and Gentlemen… : r/CHIBears
Best Bears linebacker ever? It's Dick Butkus
Who do you believe was the most intimidating defender in NFL history? - Quora