Stewards at the Turkish grand prix punished Force India's Giancarlo Fisichella with a three position grid penalty after the Roman driver jumped the red light at the start of Friday morning practice at Istanbul.

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Felipe Massa has rescinded his membership of the formula one drivers' union, the GPDA.

"I didn't always like the way it was run," the Ferrari driver told the Italian sports daily La Gazzetta dello Sport.

The news follows hot on the heels of Grand Prix Drivers' Association stalwart Jarno Trulli's harsh criticism of other non-members, including Lewis Hamilton, Adrian Sutil and Massa's teammate and current world champion, Kimi Raikkonen.

"I think they just don't care about safety," Toyota racer Trulli said this week.

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Australia's Mark Webber on Friday accepted "100 per cent" blame for crashing his Red Bull in afternoon practice at Istanbul on Friday.

"I didn't respect the green astroturf that sits on the outside of the track enough," he said, apologising to his mechanics.

Source: GMM