9. Ronaldinho, AC Milan – No.80
When signing for Milan in 2008 the former FC Barcelona superstar was also keen to wear the No.10, but like Zidane, found it was already taken – this time by Clarence Seedorf.
The Serie A giants said it was disrespectful to ask another player to give up their number and in an unconventional decision Ronaldinho chose 80 – as he was born in 1980.