The greatest players to wear each shirt number in football, including Lionel Messi no.10 and Cristiano Ronaldo no.7
10 unwritten rules for not screwing up your NFL jersey number
The History of Numbers
The History of Numbers
Back numbers in football - meaning and history, Football shirt numbers and their meaning
12 of football's strangest shirt numbers & the stories behin
Soccer Player Jersey Numbers: Explained
Football squad numbers explained: How positions are traditionally numbered & player roles
Back numbers in football - meaning and history, Football shirt numbers and their meaning