Sauber's Sergei Sirotkin in the paddock during a free practice session at the 2014 Formula 1 Russian Grand Prix.

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The race track during free practice at the 2014 Formula 1 Russian Grand Prix.

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The Sochi Autodrom race track during free practice at the 2014 Formula 1 Russian Grand Prix.

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Car tires after free practice at the 2014 Formula 1 Russian Grand Prix.c

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Pirelli employees and a Sauber technician checking car tires after free practice at the 2014 Formula 1 Russian Grand Prix.

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Toro Rosso's Daniil Kvyat takes part in free practice during the 2014 Formula 1 Russian Grand Prix.

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Williams driver Valtteri Bottas, right, takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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Ferrari driver Kimi Raikkonen and McLaren driver Kevin Magnussen take part in free practice session at the 2014 Formula 1 Russian Grand Prix.

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Toro Rosso driver Daniil Kvyat takes part in free practice session at the 2014 Formula 1 Russian Grand Prix.

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Red Bull Racing driver Sebasitan Vettel takes part in free practice session at the 2014 Formula 1 Russian Grand Prix.

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Toro Rosso driver Daniil Kvyat takes part in free practice session at the 2014 Formula 1 Russian Grand Prix.

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Red Bull Racing driver Daniel Ricciardo takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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Ferrari driver Fernando Alonso takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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Mercedes driver Nico Rosberg takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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Marussia driver Max Chilton takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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Ferrari driver Fernando Alonso takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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Ferrari driver Kimi Raikkonen takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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Lotus driver Pastor Maldonado during the free practice at the 2014 Formula 1 Russian Grand Prix.

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A Mercedes Team race car during the free practice session at the 2014 Formula 1 Russian Grand Prix.

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A Ferrari Team race car during the free practice session at the 2014 Formula 1 Russian Grand Prix.

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A Mercedes Team race car during the free practice session at the 2014 Formula 1 Russian Grand Prix.

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Mechanics during a pit stop in the free practice session at the 2014 Formula 1 Russian Grand Prix.

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Lotus driver Pastor Maldonado takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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The free practice at the 2014 Formula 1 Russian Grand Prix.

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Mechanics during a pit stop in the free practice session at the 2014 Formula 1 Russian Grand Prix.

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Mechanics during a pit stop in the free practice session at the 2014 Formula 1 Russian Grand Prix.

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Mechanics during a pit stop in the free practice session at the 2014 Formula 1 Russian Grand Prix.

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FIA President Jean Todt at the Sochi Autodrom racing complex, during a news conference on the Marussia driver Jules Bianchi incident that happened during the F1 Japanese Grand Prix.

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A race car during the free practice session at the 2014 Formula 1 Russian Grand Prix.

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A mechanic during a pit stop in the free practice session at the 2014 Formula 1 Russian Grand Prix.

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FIA race director Charlie Whiting at the Sochi Autodrom racing complex, during a news conference on the Marussia driver Jules Bianchi incident that happened during the F1 Japanese Grand Prix.

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FIA President Jean Todt at the Sochi Autodrom racing complex, during a news conference on the Marussia driver Jules Bianchi incident that happened during the F1 Japanese Grand Prix.

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Austrian car racer, Formula 1 three-time world champion Niki Lauda during a free practice session at the 2014 Formula 1 Russian Grand Prix.

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Williams driver Felipe Massa, right, in the paddock after the free practice at the 2014 Formula 1 Russian Grand Prix.

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FIA race director Charley Whiting after a free practice session at the 2014 Formula 1 Russian Grand Prix.

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Red Bull Racing driver Daniel Ricciardo in the paddock after the free practice at the 2014 Formula 1 Russian Grand Prix.

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Sauber driver Esteban Gutierez in the paddock after the free practice at the 2014 Formula 1 Russian Grand Prix.

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FIA President Jean Todt after the free practice session at the 2014 Formula 1 Russian Grand Prix.

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Marussia driver Alexander Rossi, left, in the paddock after the free practice at the 2014 Formula 1 Russian Grand Prix.

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FIA President Jean Todt, left, and FIA Race Director Charlie Whiting, second right, after a free practice session at the 2014 Formula 1 Russian Grand Prix.

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Ferrari driver Fernando Alonso in the paddock after the free practice at the 2014 Formula 1 Russian Grand Prix.

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Scuderia Ferrari racing team member Kimi Raikkonen, right, and Mercedes AMG Petronas F1 Team member Lewis Hamilton in the paddock after a free practice session at the 2014 Formula 1 Russian Grand Prix.

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Mercedes's Nico Rosberg takes part in free practice during the 2014 Formula 1 Russian Grand Prix.

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Toro Rosso driver Daniil Kvyat takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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Williams driver Valtteri Bottas takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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Transportation of the race car wheels at the Sochi Autodrom race complex during the free practice session at the 2014 Formula 1 Russian Grand Prix.

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Red Bull Racing's Sebastian Vettel takes part in free practice during the 2014 Formula 1 Russian Grand Prix.

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Force India's Nico Hulkenberg takes part in free practice during the 2014 Formula 1 Russian Grand Prix.

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Marussia's Max Chilton takes part in free practice during the 2014 Formula 1 Russian Grand Prix.

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Marussia driver Max Chilton during the free practice at the 2014 Formula 1 Russian Grand Prix.

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McLaren driver Jenson Button takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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A race car during the free practice session at the 2014 Formula 1 Russian Grand Prix.

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Mechanics perform pit stop adjustments during the free practice session at the 2014 Formula 1 Russian Grand Prix.

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Toro Rosso driver Daniil Kvyat takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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A girl standing next to the Mercedes emblem during the free practice session at the 2014 Formula 1 Russian Grand Prix.

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Ferrari driver Fernado Alonso after the free practice at the 2014 Formula 1 Russian Grand Prix.

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Red Bull Racing team member Sebastian Vettel, right, after a free practice session at the 2014 Formula 1 Russian Grand Prix.

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Force India team's race car during the free practice session at the 2014 Formula 1 Russian Grand Prix.

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McLaren driver Kevin Magnussen takes part in the free practice at the 2014 Formula 1 Russian Grand Prix.

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Red Bull Racing team member Sebastian Vettel after a free practice session at the 2014 Formula 1 Russian Grand Prix.

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