He is a striker in form, netting well over a goal a game, scoring in almost every match this season. He is leading his club's title charge and taking his country to the brink of the World Cup. Usually this would be a remarkable introduction for any one player. But this season it applies to not one, not two, but three of Europe's leading strikers. Kylian Mbappe has hit 17 goals in 13 matches for Real Madrid and France this season. But the 26-year-old is only Europe's third-most prolific striker.