Mark Antony Viduka (/vɪˈduːkə/ vih-DOOK-ə; born 9 October 1975) is an Australian retired soccer player who played as a centre forward. He captained the Australia national team to the Round of 16 at the 2006 FIFA World Cup which remains their best ever performance to date. His four goals in the UEFA Champions League are the most scored by any Australian player.