Once it was only about trophies and derby day wins. Now the battle to be the biggest club in Manchester has gone outside the stadium and into the streets and parks beyond. A fight not only for the best footballing talent in town but for the heart and minds of the city's kids too.

We hear from those on the front line - youth coaches, scouts, academy directors, parents - about how children as young as four are being wooed and won, and how an entente at the top level is masking an increasingly intense rivalry on the playing pitches and playgrounds.

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