Russian GP practice: Carlos Sainz suffers heavy crash in Sochi

Toro Rosso driver Carlos Sainz suffers a heavy crash during final practice for the Russian Grand Prix in Sochi.

He gives a thumbs up to TV cameras as he is lifted into an ambulance on a stretcher after being extricated from the car by medical crews.

His father later tweeted that Sainz was OK after the 21-year-old had been airlifted to hospital.

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