Why does Cristiano Ronaldo wear the No.7 shirt? | Goal.com US
Squawka on Twitter: "Cristiano Ronaldo's 2009/10 season by numbers: ◉ 35 games ◉ 33 goals ◉ 7 assists The only time he has ever worn the No.9 shirt." / Twitter
Cristiano Ronaldo hat-trick keeps Real Madrid on Barcelona's tail | La Liga | The Guardian
Why Cristiano Ronaldo changed his number for 9 to 7 at Real Madrid? - Quora