Andrea Dovizioso has levelled criticism at the Ducati factory for not sorting out the difficulties he and Nicky Hayden have experienced this year by saying it is the fault of the people who have not fixed the bike.

The Italian, who will partner Cal Crutchlow next year, is clearly frustrated by a lack of progress since testing at Sepang and says that he is already worried about 2014 as both Honda and Yamaha are already testing next year's bike.

"We have to be worried. The reality is in front of everybody. I can't speak about 2014 because the details are not clear. We are in a difficult situation," said Dovizioso, speaking at Aragon.

"The key point is not the bike. If until now we didn't fix the problem it means the bike is the consequence of the problem, so we have to fix a different point, not the bike now but is difficult. The problem is the people who try to fix the problem."