FIFA has received a request from Chile asking for restrictions to be imposed on Watford defender Francisco Sierralta.

The restrictions, should they be imposed, could prevent the player from featuring against Wolverhampton Wanderers this weekend.

The request comes alongside the news that eight Brazilian players at Premier League clubs are set to be barred from playing this weekend over a refusal to release them for international duty.

The Brazilian football federation (CBF) has written to FIFA asking that an automatic restriction be placed on the players from appearing for their clubs between September 10 and 14.

The players are Ederson and Gabriel Jesus from Manchester City, Liverpool trio Alisson, Fabinho and Roberto Firmino, Fred at Manchester United, Thiago Silva at Chelsea and Raphinha at Leeds. The CBF did not request a restriction be placed on Everton forward Richarlison, who was released by the club to play for his country at the Olympic Games this summer.

It remains to be seen whether clubs will follow the restrictions this weekend, and, unless an agreement can be reached, then the whole situation looks set to flare up again ahead of the October international window.

In previous international windows since the pandemic began, clubs had been allowed to refuse to release players if they would be required to quarantine for five days either on arrival with their national team or on their return to their club.

The Premier League announced prior to the September international window that players would not be released where that involved travelling to countries on the UK Government’s coronavirus ‘red list’.

Anyone returning from a red-list country or who has been in a red-list country in the 10 days prior to entering the UK must quarantine in a Government-approved hotel for 10 days, which would mean players missing Premier League as well as Champions League and Carabao Cup games.

FIFA president Gianni Infantino wrote to the Prime Minister Boris Johnson asking for an exemption, but the request was not granted.

As well as Sierralta, FIFA is understood to have also received a request from Chile in relation to Ben Brereton of Blackburn.

Paraguay have made the same request regarding Newcastle's Miguel Almiron, while the Mexican federation has requested Raul Jimenez be ineligible for Wolves between September 9 and 13, meaning he could also miss out on this weekend's match at Vicarage Road.