He won a stage in 1996 Giro d'Italia and 1998 Tour de France, but was expelled from the 1998 Tour de France after illegal doping was found in his hotel room.
As an amateur, Massi won many races, and when he became a professional cyclist in 1987, much was expected from him.
[1] In the Tour de France, he won a mountain stage, and after the 16th stage was in seventh place in the general classification, and leading the mountains classification, when corticoids were found in his hotel room.
Massi was the first rider in history to be arrested for breaking doping laws.
[3] Later, all legal charges against him were dropped,[4] but the Italian Olympic Committee banned him for six months.