CONCACAF chief Victor Montagliani, UEFA chief Aleksander Ceferin, AFC head Salman bin Ibrahim Al Khalifa, PSG's Nasser Al-Khelaifi and Norway football chief Lise Klaveness have emerged as possible successors to FIFA President Gianni Infantino. His re-election faces uncertainty after Serbia, Sweden and Wales withdrew support following failure of his proposal for private investment in World Cup.