 Complete the following phrase:  Spiranovic received a call up to a 20-man Australia U20 national team squad for a five-match tour of South America in August 2006. Spiranovic participated in matches against Colo-Colo U20, Universidad de Chile U20, Chile U20 and Argentina U20. The South American tour was preparation for the 2006 AFC Youth Championship, the qualification campaign for the eventual 