The fixture came to a halt following an alleged breach of coronavirus regulations by Argentina relating to Premier League players.
Emiliano Martinez, Cristian Romero and Giovani Lo Celso started the match, leading to Brazilian health officials to act by entering the pitch after the game had kicked off. A melee ensued before Argentina left the field and did not return.
✈️ @Argentina's squad headed home after its @FIFAWorldCup qualifier against @CBF_Futebol was suspended in bizarre circumstances this morning. No word yet on when the match will be replayed. #BRAARG #BRAxARG pic.twitter.com/1v9jexLTbX— beIN SPORTS (@beINSPORTS_AUS) September 6, 2021
Brazil restricts entry to travellers from the United Kingdom if they have spent time in the country within the previous two weeks. The Selecao had attempted to call up nine players from the English top flight, but none of those selected travelled as Premier League clubs united in an agreement not to release players.
FIFA started investigations into the scenes on Monday, with world football's governing body then confirming disciplinary cases had been opened against the two national associations.
"Following the analysis of the official match reports related to the FIFA World Cup qualifier match between Brazil and Argentina, FIFA can confirm that disciplinary proceedings have been opened involving both member associations," the statement said.
"The two teams were asked to provide further information on the facts that led to the suspension of the match, which will be gathered and then thoroughly reviewed by FIFA's disciplinary committee.
"Updates will follow in due course."