Cristiano Ronaldo set a world record transfer fee for a teenager when Manchester United paid £12.24m for him in August 2003.
Club: Manchester United
Debut: 20/08/03 v Kazakhstan
Sir Alex Ferguson was quick to snap up the tricky Sporting Lisbon winger after his display against United in a pre-season friendly.
He suffered criticism from the British press in his first few months at Old Trafford for his over-elaborate stepovers when trying to beat a man.
But Ronaldo has since become a firm favourite with the United supporters.
His pace and quick feet marked the Maderia-born youngster out at an early age and he was fast tracked into Portugal's youth sides.
He made a big impression playing for the Under-21 side and was handed his full international debut a week signing for Manchester United.
Did you know? Ronaldo took over the famous Manchester United number seven shirt from David Beckham.