The FIFA Council unanimously approved the expanded 48-team World Cup at a meeting in Zurich on Tuesday.
Spartak Moscow fans unfurled a banner in response to the BBC's documentary, Russia's Hooligan Army, branding the organisation "Blah Blah Channel."
Russia defender Vasily Berezutsky retired from international football on Friday, one year before his country hosts the World Cup.
Brazil coach Tite has said he wants his team to play some of the tournament favorites. He also mentioned wanting to play at Italy and at Spain.
Russia World Cup head Vitaly Mutko has been barred from seeking re-election to FIFA's top decision-making body.
FIFA is still waiting for details on players implicated in an investigation of doping in Russian soccer, secretary general Fatma Samoura has said.