User:Matthew hk/sandbox/List of dual international footballers (2000s on wards)

Players who hold dual or multi nationality can switch their nationality to represent youth team anytime, until 21st birthday. Upon 21st birthday, the last youth team selected regard as their nationality for senior team. If a player made his senior debut in a competitive match, he no longer change his nationality any more.

A "buffer" period is set up until December 2004, which player older than 21st year old, and not yet made his senior debut can apply to change.