The NFL's best players by jersey number: Nos. 50-99 - Sports Illustrated
Best Football player for every Jersey Number
Best Bears player to wear every jersey number
Dominant Digits -- The 10 most popular jersey numbers among current NFL players - ESPN
The greatest players to wear each shirt number in football, including Lionel Messi no.10 and Cristiano Ronaldo no.7
Number (sports) - Wikipedia
Soccer positions explained: names, numbers and what they do, World Football FAQ
NFL 100: Greatest NFL players ever by jersey number
The greatest players to wear each shirt number in football, including Lionel Messi no.10 and Cristiano Ronaldo no.7
The Most Famous Football Player From Every State