The timing of this decision just prior to World Cup is so interesting. It'd be less surprising if he made the decision immediately after Popa announced his WC squad if he wasn't chosen. To make the decision now suggests he was pretty aggrieved and perhaps thought he was no chance to be picked, having likely been made aware that he wouldn't feature in the upcoming friendlies. Given he's surely unlikely to be in Croatia's WC squad, I wonder why he has made the decision now 3 months out from WC. It's similar to Triantis where he actually wanted to be a Socceroo and Popovic's actions have led to him turning his back. If it were a different manager, I would say that it is very likely that one or both are already cap-tied Socceroos by now.