On a Sunday morning in September 2004, Mark Walsh was about to take charge of his City Colts under-9 side for a game on the outskirts of Milton Keynes when he felt a tug on his tracksuit sleeve.
He looked down to find an eight-year-old boy with bright eyes and a big smile, dressed in a football kit, desperately trying to get his attention.
"Excuse me, can I play too please?" asked the boy, who had come along to watch his friends in the game.
Walsh explained this was a formal league game and that you had to be registered with the club and the league to take part.