A few oldies, Roberto Lezaun, won his first ever race as a pro 1991 Ruta del Sol, was all downhill after that.
Heinrich Trumheller, a Russian/German, turned pro in 1992. Finished 6th in debut Tour of Switzerland a few weeks short of his 20th Birthday, including 2nd on a stage to King Kelly. Then won the German Road Race title a week later and had several other Top 10s in races in his first year as a pro. Touted as a future star, made the bad decision to join a French team and his career quickly went off the tracks.
Ivan Quaranta, Italian sprinter from early 2000s who beat Super Mario at the Giro more than once and was expected to take over from Cipo, but never happened and instead Petacchi took over the mantle.