ON APRIL 24 1996 during an international friendly in Tallinn, a unique moment in football history occurred when Iceland replaced one striker with another half his age. 

For the only time in international football history, a son came on for his father as 17-year-old Eidur Gudjohnsen replaced his 34-year-old dad Arnor. 

Eidur would go on to eclipse everything his father had achieved in the game, winning 15 more caps, scoring 12 more goals and playing for Iceland at a major international tournament. While his dad played professionally in four countries, Eidur would play in nine, winning two league titles with Chelsea and the treble with Barcelona — he is the only man from his country to win the European Cup.