Wayne Rooney became a world-beater, while Theo Walcott failed to live up to the hype... Kobbie Mainoo is set to be the 14th male player this century to make his England debut before turning 19, but how did the other 13 fare?
Should he play against Brazil or Belgium in the coming days, Mainoo would become just the 14th male player this century to make his England debut before turning 19.
