Getty ImagesLewis OldhamMbappe, Rashford & the 20 youngest players at World Cup 2018World CupRussiaPanamaEnglandDenmarkMoroccoAustraliaNigeriaSouth KoreaMexicoSenegalSerbiaFranceThis year's tournament offers an opportunity for some of the game's rising stars to shine, but who are the youngest footballers in Russia?