New Brazil Coach Carlos Dunga called Napoli goalkeeper Rafael and Roma right-back Douglas Maicon.
The first friendly games after the World Cup debacle has only 10 players remaining from that squad.
New entries include Napoli goalkeeper Rafael Cabral, who is only just returning from a long-term injury, and Liverpool’s ex-Inter starlet Philippe Coutinho.
Maicon is one of the 10 remaining from the World Cup campaign.
Brazil face Colombia on September 5 and Ecuador on September 9.
Brazil squad: Jefferson (Botafogo), Rafael Cabral (Napoli); David Luiz (PSG), Marquinhos (PSG), Gil (Corinthians), Miranda (Atletico Madrid), Maicon (Roma), Filipe Luis (Chelsea), Alex Sandro (Porto), Danilo (Porto); Luiz Gustavo (Wolfsburg), Elias (Corinthians), Fernandinho (Manchester City), Ramires (Chelsea), Everton Ribeiro (Cruzeiro), Oscar (Chelsea); Hulk (Zenit), Ricardo Goulart (Cruzeiro), Willian (Chelsea), Neymar (Barcelona), Philippe Coutinho (Liverpool), Diego Tardelli (Atletico-MG)