Getty ImagesGOALPele, Eto'o & the youngest players in World Cup historyWorld CupEgyptCosta RicaIcelandSpainGermanyUruguayDenmarkIranMoroccoSaudi ArabiaAustraliaNigeriaArgentinaMexicoSerbiaCroatiaPortugalRussiaPeruFranceAs we near ever closer to the finals in Russia, Goal takes a look at the youngest players to have represented their countries at the tournament