Argentina coach Diego Maradona was keen to play down the growing expectations surrounding his in-form side, insisting Brazil are still favourites.
Uruguay and Argentina begin the day as leaders of Group A and Group B respectively, but with no-one yet assured of a last 16 place or consigned to elimination, there is still plenty to play for.
FIFA.com profiles Greece's qualification for South Africa and highlights the star players, the coach and the country's football history.
Argentina face Nigeria and Greece, as well as Korea Republic, in a section that recalls USA 94 but Diego Maradona will hope for a happier outome.
The majority of sides expected to qualify for South Africa 2010 from Europe did so, although notable European absentees include Russia and Croatia.