"I tried to talk to the club to let me leave for the Olympic Games but it was complicated," Silva said.
Brazil star Neymar has rejected criticism of his lifestyle, asking reporters: "Why can I not go out and enjoy parties?"
Brazil striker Neymar highlighted the importance of Lionel Messi at Barcelona while hinting that he wants Gabriel Jesus to join the Catalan giants.
Manuel Lanzini has pulled out of Argentina's squad for the Olympics because of a knee injury.
Germany have set their sights on winning a medal at the Olympic Games next month, according to goalkeeper Timo Horn.
Atletico Madrid are to sign goalkeeper Axel Werner this summer according to the Argentina under-23 international's current club, Atletico Rafaela.