'This could be a game changer': The app hoping to revolutionize football

    Oliver Sonne, youth player for FC Copehagen

    (CNN)Oliver Sonne had given up hope of becoming a professional footballer. The Danish teenager had lost his motivation, stopped believing and grown tired of training with his small town club.

    Practicing four times a week without much reward or recognition had taken its toll.
    The 17-year-old wanted to do what ordinary teenagers did: hang out with friends, relax, have fun.
      "I started to think I'd never get to the point where I could go professional," he tells CNN Sport.