Fanni made his professional debut on April 10, 1988, beating Tunisian fighter Mohamed ben Ali Saidi in Iglesias.
[1] After winning his first 16 fights, he received a shot at the vacant European flyweight title on August 3, 1990, facing Scottish fighter (and future world champion) Pat Clinton in Cagliari.
[2] Less than seven months later, he fought Joe Kelly for the same title (again in Cagliari), stopping him inside a minute in the second round, thus becoming the first Italian to hold the European flyweight belt since Franco Cherchi six years earlier.
[1] Fanni finally lost his belt on November 14, 1992, when Welsh fighter Robbie Regan defeated him by unanimous decision in Cardiff.
"[3] Between 1993 and 1995, Fanni unsuccessfully challenged compatriot Luigi Camputaro for the European flyweight belt on three separate occasions, losing twice and achieving a draw.
His final world title fight came on April 17, 1999, when he moved down a weight class to challenge 20-year-old Mexican starlet Jorge Arce for his WBO light flyweight belt in Sassari.