NxGn 2018: The 50 best teenagers in the worldSimone GambinoGetty/Goal CompositeNXGNBayern MünchenMonacoAjaxPSGManchester UnitedMilanSerie ABundesligaInternazionaleJuventusEredivisieBorussia DortmundPrimeira LigaLiverpoolLigue 1Real MadridBarcelonaValenciaPremier LeaguePrimera DivisiónFlamengoSerie AManchester CityChelseaArsenalGianluigi Donnarumma triumphed in 2017 but who will take top spot this year? Below, Goal lists the game's top talents born or after January 1, 1999