Australia's World Cup team landed in Brazil on Wednesday, the first foreign squad to arrive for the tournament that starts in two weeks.
FIFA Secretary General Jerome Valcke welcomed Australia with a message on his Twitter account.
"The Socceroos have landed in Brazil!" he tweeted.
Australia is a heavy underdog in Group B with defending World Cup champion Spain, Chile and the Netherlands.
Australian midfielder Tommy Oar said they were excited to be in Brazil and promised his team is "up for the challenge".
Australia opens June 13 against Chile in the western city of Cuiaba.
The Socceroos will train in Vitoria, which is located about 300 kilometres (200 miles) northeast of Rio de Janeiro.