Brazil boss Luiz Felipe Scolari has hailed the "crucial moment" against Uruguay as the chance for Brazil to begin healing as violent protests continue to rock the nation.
Uruguay captain Diego Lugano has accused Brazil of abandoning the "beautiful game" and labelled the home nation's star striker Neymar as a diver.
Mario Balotelli will play no further part in Italy's Confederations Cup campaign after being sent home to recover from a thigh injury.
Howard Webb has been appointed to referee Thursday's Confederations Cup semi-final between Spain and Italy, although the news may not have been welcomed by many in the La Roja camp.
Spain coach Vicente Del Bosque has refuted stories that he and key midfielder Xavi Hernandez had fallen out over team selection and tactics during the Confederations Cup.
The Spanish FA has angrily denied Brazilian media claims of alcohol-fuelled strip-poker games at the team hotel after their side's opening Confederations Cup game against Uruguay.
FIFA general secretary Jerome Valcke insisted next year's World Cup in Brazil will go ahead as planned despite civil unrest marring the Confederations Cup.
Spain boss Vicente Del Bosque insists Italy will be focused on revenge when the two sides meet in their Confederations Cup semi-final.