Stoner vows more aggressive approach

The Australian has been critical of his rivals' overtaking moves in recent years, most famously after his battle with Valentino Rossi at Laguna Seca in 2008.

But he now says he will take the fight to them in future.

"In the past I have been too clean while overtaking," he told Motosprint. By contrast, the others wouldn't care, so I've decided to have a more aggressive approach. That's what it will be like in 2010 too."

Stoner also says he supports the return to 1000cc bikes, but is critical of the planned regulations.

"I like the 1000cc bikes. I never understood why the 800cc category was born, as it's a displacement that doesn't exist on road bikes. With the 1000cc, the races were more fun so maybe going back this way could be an advantage," he said.

"What I don't like is the rules they want to introduce. If we'll use road production bikes, pushed to their maximum, we'll see engines going up in smoke and we'll have oil on the track."