Gianluca Prestianni could miss Argentina’s first two group games if he is selected in their World Cup squad. Argentina winger Gianluca Prestianni faces the prospect of missing his country’s opening World Cup matches after FIFA extended his six-game suspension for homophobic conduct to have a worldwide effect. “The FIFA Disciplinary Committee has decided to extend the six-match ban imposed by UEFA on SL Benfica player Gianluca Prestianni to have worldwide effect,” a FIFA spokesperson said on Wednesday. “The sanction has been extended in accordance with Article 70 of the FIFA Disciplinary Code.” The Benfica player was handed the ban by UEFA following accusations he directed a slur at Real Madrid’s Vinicius Jr during February’s Champions League playoff clash, which Real won 1-0. The worldwide extension, which was requested by UEFA, means Prestianni would miss Argentina’s first two World Cup fixtures if he is selected.…