The evidence is overwhelming, it is actually Daniel Riolo, who wrote this book.
For a list of information about the masquerade, type "mask riolo footballer" in your search engine and you will come across the subject of a football forum. Namely: the exact same style of writing, anecdotes and opinions narrated on the blog Riolo the exact same way as in the book, so on, and even ... a mistake on the name of a player, and hold on, we find EXACTLY the same mistake in an interview Riolo on football site.
The English versions were actually stories of players, here it is just the work of a "journalist" who has neither the courage nor the legitimacy to assume his remarks, which we can now clearly doubt the veracity.