Barcelona boss Quique Setien says the Spanish Football Federation (RFEF)'s proposals for the La Liga season resuming are "unworkable" amid the coronavirus pandemic.
No football has been played in Spain's top flight since March in an attempt to slow down the spread of Covid-19, which has killed over 19,000 people in the country.
With lockdown measures being eased, La Liga president Javier Tebas suggested last week that the league could be back up and running by May 29 at the earliest.
According to a leaked proposal, players and coaching staff would be quarantined in a hotel or in their club's training ground to prevent an outbreak, with regular tests to be carried out ahead of games.