By Ewan Murray Major international tournaments are normally the smartest place to play your best football as a wonderkid. Many youngsters have stepped out of the shadows at the World Cup and European Championship in recent years, firmly establishing themselves as household names and often placing themselves front and centre in the shop window. Euro 2024 is set to serve that purpose for a number of the continent’s most promising starlets, many of whom are embarking on their maiden voyage at an international tournament. While some of those to have shone brightest are already established professi…