Jorge Lorenzo. Pic/AFP

Jorge Lorenzo claimed his first MotoGP win for Ducati, who look set to drop the Spaniard next season, as world championship leader Marc Marquez crashed in the Italian Grand Prix at Mugello on Sunday to reignite the title race. Lorenzo, starting from second on the grid, dominated the race to lead a Ducati 1-2 ahead of Italy's Andrea Dovizioso with Italian star Valentino Rossi, who had started from pole position, completing the podium on a Yamaha. Spaniard Marquez -- targeting a fourth straight win this season -- had moved up to third place on the opening lap from sixth. But the 25-year-old came unstuck as he tried to put pressure on Lorenzo, sliding into the gravel on the fifth lap before struggling to restart his Honda. The four-time world champion remounted his bike and finished in 16th position, remaining top of the championship standings after six races but with his lead cut.