Guus Hiddink
Sarkies was called up by coach Guus Hiddink to be part of the "train-on" squad leading up to Australia's appearance at the 2006 FIFA World Cup. He won his first cap in the dying minutes of Australia's 3-1 friendly win against Liechtenstein on 8 June 2006. He was then kept in Germany with the Socceroos after he was given a personal invitation from Guus Hiddink to stay with the team until after the first group match with Japan.