FIFA have released an official statement after Brazil's World Cup qualifier against Argentina was suspended on Sunday.
The much-awaited clash at Corinthians Arena was brought to an abrupt halt just minutes after kick-off when Brazilian health officials raised objection to the participation of three Argentine players they say broke quarantine rules.
Emiliano Martinez, Cristian Romero, and Giovanni Lo Celso were all starters for Argentina, and were asked to vacate the premises for not following quarantine guidelines after making the trip from England for the game.
The Argentine FA said on Monday that all four players were returning to their clubs, but because of UK quarantine rules, they will miss their Premier League games this weekend.
"Fifa regrets the scenes preceding the suspension of the match between Brazil and Argentina which prevented millions of fans from enjoying a match between two of the most important football nations in the world," world football's governing body said in a statement.
"The first match official reports have been sent to Fifa. This information will be analysed by the competent disciplinary bodies and a decision will be taken in due course."
Meanwhile, Lionel Messi hit out at the Brazilian health authorities' decision, and said: "Listen to me, we've been here [in Brazil] for three days. Were they waiting for the game to start to come here? Why didn't they warn us before?"
Brazil lead the South American qualifying group for Qatar 2022, six points ahead of second-place Argentina.