Brazil was missing nine players from the Premier League for its first day of practice ahead of South American World Cup qualifiers.
The Premier League clubs have been reluctant to send players to South American nations that are red-listed by the British government because of the COVID-19 pandemic. Any players who go and then return to Britain will have to spend 10 days in hotel quarantine and have little chance of training.
Brazil could only assemble 22 players in Sao Paulo ahead of matches against Chile, Argentina and Peru.
Brazil coach Tite selected a larger-than-normal 45-man squad in case he couldn't count on the nine England-based players who were stopped from travelling: Alisson, Fabinho, Roberto Firmino (Liverpool), Ederson, Gabriel Jesus (Manchester City), Thiago Silva (Chelsea), Fred (Manchester United), Richarlison (Everton) and Raphinha (Leeds).
Veteran Silva used social media to protest against the decision. He posted a picture on Instagram with a sad face wearing a Chelsea training shirt together with a picture showing two hands tied with a rope.
"Do I need to say anything?" the defender wrote.
Striker Richarlison was more discreet. He posted a picture celebrating a goal for Brazil and mentioned Everton on the top of it.
Already in Brazil were Casemiro, Eder Militao, Vinicius Jr. (Real Madrid), Alex Sandro, Danilo (Juventus), Bruno Guimaraes, Lucas Paqueta (Lyon), Gerson (Marseille), Lucas Verissimo (Benfica), Matheus Cunha (Atletico Madrid), Claudinho, Malcom (Zenit St. Petersburg), Santos (Athletico), Edenilson (Internacional), Hulk, Everson, Guilherme Arana (Atletico Mineiro), Everton Ribeiro, Gabriel Barbosa (Flamengo), Weverton (Palmeiras), Daniel Alves and Miranda (Sao Paulo).
Neymar and Marquinhos are expected to arrive on Tuesday from Paris Saint-Germain.
FIFA has told CONMEBOL there will be consequences for clubs who don't release players as required, which could mean disciplinary action.
On Sunday, the Court of Arbitration for Sport ruled against a complaint by the Spanish league against the triple-header of fixtures in South American qualifiers, which would end too close to the resumption of its competition.