Valentino Rossi is an Italian racing driver, former professional motorcycle road racer and nine-time Grand Prix motorcycle racing World Champion. Nicknamed "the Doctor", Rossi is widely considered one of the greatest motorcycle racers of all time. He is also the only road racer to have competed in 400 or more Grands Prix. Of Rossi's nine Grand Prix World Championships, seven were in the premier 500cc/MotoGP class. From Wikipedia
