Re: World Cup Discussion Thread
The main reason is by way of heritage. Its the same for playing for England (it happens more often in the cricket).
A lot of the Australians have a Croatian heritage with their parents being postwar migrants or in the case of Jason Culina, his dad came out to play in Australia and ended up staying.
The 3 guys who play for Croatia have dual citizenship. Whilst they were born and grew up in Australia they have Croatian parents. I understand that allows them to pursue Croatian nationalilty. Accordingly, having made that choice they can play for Croatia. Also I understand under FIFA rules that as long as you haven't played a senior match for another country you are free to play for the country of your choice (subject to nationality rules) without any waiting period.