Italian Moto GP rider Valentino Rossi stands on his bike in celebration after winning the Italian Motorcycle Grand Prix in Mugello June 5, 2005. Valentino Rossi tightened his stranglehold on the MotoGP world championship when he won the Italian Grand Prix on Sunday. The Yamaha rider's fourth win in five races this season -- and his third in a row after victories in China and France -- gave him 120 points, 49 ahead of his nearest challenger, Marco Melandri. REUTERS/Chris Helgren