Tony Popovic (current coach of Socceroos) is Croatian by ethnicity and the Australian player Adrian Segečić who has played for Sydney FC and represented Australia U23 and U21 has defected to the Croatia national team.
Is Popovic a traitor to Australia by enabling defection of Australian talent to Croatia?
The smoking gun is that Popovic is Croatian and the Australian player Segečić defected to Croatia.
On 13 March 2026, Segečić received approval from FIFA to switch his international allegiance to the Croatia national team.[60] His eligibility comes from his Croatian heritage through his grandparents, who immigrated to Australia.[61] The decision, which came as a surprise, was controversial in his home country of Australia, as the Socceroos would lose a player regarded as among their best talents. Many fans blamed his defection on a lack of selection by head coach Tony Popović (who also happens to be of Croatian descent), while others blamed Croatian nationalism due to stating his desire to play for Croatia following the switch
Popovic traitor to Australia Soccer
If I selected him I would have blocked his move
https://en.wikipedia.org/wiki/Adrian_Sege%C4%8Di%C4%87