Why schoolboys have become a huge part of football's transfer market

A 15-year-old growing up in the UK faces many tough personal decisions about their future - which school subjects to study, which social circle suits them, and where their priorities lie in life.

But in the past few weeks the choices teenage Manchester United striker JJ Gabriel has been making about his future in football have drawn huge public attention in sports media and online.

Gabriel has informed United he wants to leave the club and join another. BBC Sport has reported that he has stayed away from training and begun talking to other clubs because he and his representatives are unhappy with United's handling of the 15-year-old's progress.