<p>The youngest player to score in the World Cup final since Pelé, for the tournament-winning team, in his brief career to date Kylian Mbappé is breaking records at a rate matched by only the likes of Lionel Messi and Cristiano Ronaldo, and is fast becoming one of the biggest names in football.<br><br>But did you know that even at three years old, he would sit listening to the manager's talk before an AS Bondy match?<br><br>Or where his sign...