MotoGP world champion Marc Marquez has moved a step closer to retaining the title after winning the Aragon Grand Prix to extend his lead at the top of the standings to 72 points.

Marquez, who started third on the grid, outfought Italian Andrea Dovizioso after pole-sitter Jorge Lorenzo crashed out on the opening turn to claim his first victory in five MotoGP races.

Lorenzo later blamed Marquez for the crash after suffering a dislocated toe and a fractured right foot which has now left him in doubt for Thailand.

“From the outside, (it looked like) I entered too fast, I lean too much and I entered too wide in the dirty part, that’s why I crashed,” Lorenzo said.

Jorge Lorenzo gets airborne after a a crash in the opening turn at the Aragon MotoGP.“From what I lived, what I experienced, I entered in the normal line, entered the corner as I did in the seven last years here in Aragon, but I watched Marc go into the inside, very aggressive, not making the corner because you saw where he finished, in the green (paint on the outside).

“And when he saw that I was there, he tried not to let me pass into the corner, and I didn’t have any options (but) to go to the dirty part.

“Because we were very wide and already the other riders were coming, if I didn’t want to lose five or six positions, I had to open the throttle.

“In Misano (last time out) the crash was completely my fault, this time Marc destroyed my race, destroyed my foot, destroyed also the big possibility that I have to win and probably also (the) Thailand race.”

Jorge Lorenzo blamed Marc Marquez for causing his crash at the Aragon MotoGP.Marquez changed to a soft rear tyre just before the start of the race and took control in the last three laps, fending off the Ducati rider Dovizioso to win his home Grand Prix.

“Today, I took a risk, a gamble,” Marquez said. “I put the soft rear tyre because during the weekend every time I put the hard I felt okay, but I didn’t feel good.

“Sometimes I put the hard to be safe, but today I said, ‘okay, I’ll take a risk’. I was riding really good, really smooth in the beginning.

“I was able to follow Andrea in a good way, and we were fighting in the end, a great fight. Really top movement at the limit, I was one time in the green, was completely at the limit, but I enjoyed a lot.”

Lorenzo crashed for the second race in a row after drifting wide in the first corner, and was left with a dislocated toe.

Dovizioso, who started second on the grid, had a slender lead over Marquez after Lorenzo’s crash, with a bunch of riders close behind, but the two leaders began to pull away after the halfway mark.

Marquez took the lead on the 14th lap, but Dovizioso regained the upper hand two laps later before Marquez made the decisive move with three laps remaining.

“The real surprise is we’re fighting with Marc, so I’m so happy about the work we did during this season, to come here in this moment of this championship very strong.

“We were fighting for victory on a bad track for us. This is good for this championship and also for the future.”

Dovizioso now has 174 points to Marquez’s 246 with five races remaining.