Australia will play in the World Cup quarter-finals for the second time in its football history.
Australian footballers caused a surprise by defeating the Danish national team 1-0 in the final D group match, securing the second place in the group.
Denmark seemed quite sluggish throughout the match, while the Australians stood out in the second half.
In the 60th minute, Australia took the lead after a precise strike from Matthew Leckie.
During extra time, Kasper Hjulmand's players created several dangerous corner kicks, but they ultimately failed to equalize against the Scandinavian team.
In another group match, Tunisia expanded their victory against France (1-0).
Australia last participated in the knockout stage in 2006, when they lost 1-0 to the future champions, Italy, in the tournament held in Germany.