The Brazilian Football Association has requested that FIFA block Premier League clubs from selecting players who they refused to release for international duty for five days.
The world governing body has been asked to intervene and apply Article 5 to enforce the restriction period of September 10-14, which would see players miss this weekend's round of Premier League fixtures and also Tuesday's Champions League matches.
The players who were not released for the World Cup qualifiers against Argentina and Peru are Raphinha of Leeds, Manchester United's Fred, Thiago Silva at Chelsea, Manchester City's Ederson and Gabriel Jesus, as well as Alisson, Roberto Firmino and Fabinho at Liverpool.
The Football Association has also been contacted by FIFA regarding the matter.
According to FIFA Article 22 of its Disciplinary Code, the sanctions that may be applied if these restrictions are ignored include fines and forfeiting the match 3-0, although it is unclear what might happen if Leeds and Liverpool, who meet at Elland Road on Sunday, both defied any FIFA ruling