[1] Petrini played as a striker in the Italian Serie A for eight seasons (112 games, 19 goals), representing AC Milan, Torino, Varese, Ternana, Roma, Hellas Verona and Bologna.

His 19-year-old son, Diego, was dying from a brain tumor in the Galliera hospital in Genoa, and he launched an appeal through the media, asking to see his father, whom he had not heard from for the past six years.

Carlo Petrini, who resided in his native Monticiano, had been affected for some time from a severe form of glaucoma, which had caused almost complete blindness in his left eye and serious impairment of the right.

Petrini stats in particular that the practice of doping in the sixties and seventies was rampant, and he claims to have used them too multiple times aided and abetted by sports doctors.

Petrini subsequently published another book, 'Il calciatore suicidato' (The Suicided Footballer), where he personally investigated the mysterious death of Donato Bergamini, a player for Cosenza, who was found dead in 1989 on Route 106 near Roseto Capo Spulico.