World Cup finalists Argentina could face a FIFA fine after players celebrated their semi-final win over England with a banner declaring the Falkland Islands belonged to Argentina After the final whistle in the 2-1 win, several players held up a banner that read: "Las Malvinas son Argentinas", which translates to "The Falklands are Argentine".Under FIFA rules, "banners, flags, flyers, apparel and other paraphernalia that are of a political, offensive, and/or discriminatory nature" are prohibited inside stadiums.The sovereignty of the Falkland Islands, which are a British territory in the south Atlantic Ocean about 480km east of Argentina, remains a longstanding source of tension between Argentina and the United Kingdom.The two countries fought a brief war after Argentina invaded the islands in 1982