Adrià learns to lose both on and off the pitch of love when his best friend falls in love with the Sara, the same girl as him. Then he starts to write a letter to his hero, Leo Messi, which ends up becoming a book. Ten is a very important number in life. The reader will have to decide whether Adrià , his friends and family and even his teachers and coaches deserve full marks for their attitudes and behaviour each day. Is it funny? Of course. Are there challenges? Absolutely. Is there despair, frustration...? There is triumph. Is this book for boys or girls? It's for you, whether you're called Sara or Adrià...