FIFA is weighing disciplinary action after Argentina’s post-victory banner reignited a decades-old sovereignty dispute.

Following their 2-1 World Cup win over England, Argentina players held up a banner about the disputed UK territory, known as the Falkland Islands. #EuropeNews

During post-match celebrations Wednesday in Atlanta, Argentine players held a banner handed over by fans, reading “Las Malvinas son Argentinas” — “The Malvinas are Argentine.”…