The Spaniard, who is donating 99 per cent of the proceeds to the Common Goal cause, has revealed what inspired him to set up the charity in 2017.
In this snippet of the book, Juan reflects on one of the most famous nights from his playing career and how it had a profound effect on his thinking.
He is referring to an evening in Munich seven years ago, when he won the UEFA Champions League trophy with his former club Chelsea and a group of team-mates from around the world.
Mata states that the unity he feels with his team-mates, at any club, makes him believe that football can come together for a ‘common goal’…
“One thing I know for sure, one of the few things I’m certain of about my future, is that I will always be involved in ‘football for good’, even after my playing career.