ASSEN, NETHERLANDS - JUNE 29:   Andrea Dovizioso of Italy and Ducati Marlboro Team leads Nicky Hayden of USA and Ducati Marlboro Team during the MotoGP race during the MotoGp Of Holland - Race at TT Circuit Assen on June 29, 2013 in Assen, Netherlands.

Photo Credit: Mirco Lazzari gp/Getty Images

management has moved quickly to diffuse tensions between factory riders and following their dramatic last corner collision in the Indianapolis Grand Prix.

In advance of this Sunday’s at Brno the Desmosedici teammates have been warned that Ducati does not want to see a repeat of the friendly fire.

The bump and grind on the final lap of last Sunday’s race at the Brickyard allowed Yamaha rider Bradley Smith to sneak through into eighth place, dropping Hayden to ninth and Dovizioso 10th.

A similar incident occurred in the Dutch TT at in June.

Dovizioso was not impressed with Hayden’s overtaking move at Indy, which took both riders out of the track and over the curb, motocross style.

The pair had also bumped each other on the front straight at Laguna Seca during the in July.

“They have had a word with us just to try and keep it…. the main thing was what happened put Bradley through in Assen and also last weekend,” said Hayden, the 2006 world champion.

“They had a word to try and say they hope it doesn’t happen again but they were pretty cool and they said it is racing and they understand you at least want to beat your teammate.

“To be fair Dovi had no problems. Of course he didn’t like it but he wasn’t complaining too bad.”

Hayden leaves Ducati at the end of this season, having not had his contract renewed.

He has been linked to a ride with the LCR Honda team.

Both Hayden (10th) and Dovizioso (ninth) were well off the pace during Friday’s free practice for the Czech GP, both riders more than 1.2 seconds off the fast pace set by Germany’s (Honda).

World champion was second fastest, just 0.038 seconds behind, despite the disappointment of being told by Yamaha that the much-desired seamless shift gearbox is still not ready for race use.

Honda young gun , who made a clean sweep of the three American races this season, was fifth fastest.

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