Ray Nitschke, Kevin Hardy, Derek Harper among 15-person 2020 Illinois Athletics Hall of Fame Class
Power Ranking the 25 Toughest NFL Players of All-Time, News, Scores, Highlights, Stats, and Rumors
Ray Nitschke through the years
Toughest Football Players in NFL History
Greatest Green Bay Packers players of all time: Ray Nitschke
Bill Lueck, Part I: Ray Nitschke was better than Butkus
Image Gallery of Ray Nitschke, NFL Past Players
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Power Ranking the 25 Toughest NFL Players of All-Time, News, Scores, Highlights, Stats, and Rumors
Pro Football Focus - Who is the hardest hitter in NFL history?
Power Ranking the 25 Toughest NFL Players of All-Time, News, Scores, Highlights, Stats, and Rumors
Toughest Football Players in NFL History