Argentina now face the prospect of disciplinary action from Fifa after their players on Wednesday went over to their fans and took a banner in support of their country's claims to the Falkland Islands and celebrated with it on the pitch after play, dancing for their 2-1 win over England in Atlanta.
Without fear, they celebrated while holding a banner reading "Las Malvinas son Argentinas", which translates as "The Falklands are Argentine," and now risk a fine that was imposed to them back in 2014, when the Argentine Football Association was fined £20,000 after its players held up a banner with the same message before a friendly against Slovenia.
The Falklands, a British overseas territory in the south-west Atlantic Ocean, remain the subject of a sovereignty dispute between the UK and Argentina.
Downing Street backed calls for Fifa to investigate, with the prime minister's official spokesperson saying: "The World Cup might not be ours, but the Falkland Islands definitely are. Our commitment to the Falklands will never waver."
Argentina, ruled at the time by a military junta led by General Leopoldo Galtieri, invaded the islands, situated 300 miles off Argentina's east coast, in 1982.
The conflict, which lasted for 74 days between April to June 1982, led to the deaths of 655 Argentine and 255 British servicemen. Three people from the islands also died.
Back in 2014, World football's governing body said the gesture had breached rules on political action and team misconduct.
Fifa takes disciplinary action for general breaches of regulations by players or a country's supporters in the weeks after a tournament, so it would be a surprise if anything happened in the next few days