Notable Players to Wear No. 4
NFL history: 100 people who shaped the league, pro football - Sports Illustrated
Greatest NFL Player at Every Jersey Number, 00 to 99
The NFL's best players by jersey number: Nos. 50-99 - Sports Illustrated
NFL Heroes: The 100 Greatest Players of All Time – Capital Books On K
The 100 Best NFL Players of All-Time - Updated 2023 List
PFF50: The 50 best players in the NFL right now, NFL News, Rankings and Statistics
Top 100 Players of 2021, Nos. 10-1: Chiefs QB Patrick Mahomes reigns as No. 1 ranked player
NFL 100: The Greatest Moments of the NFL's Century: Ellenport, Craig, Aikman, Troy: 9781629377452: : Books
NFL 100 Greatest' Characters: Shannon Sharpe
NFL 100: The Greatest Moments Of The NFL's Century, Navy Bonded Leathe – Hester & Cook
NFL history: 100 people who shaped the league, pro football - Sports Illustrated
NFL 100: Greatest NFL players ever by jersey number