Follow live coverage of qualifying for the Russian Grand Prix from Sochi Autodrom with F1i.
An exciting session is in store as Lewis Hamilton and Nico Rosberg were separated by less than 0.1s in final practice, with Ferrari a further 0.6s back as Sebastian Vettel recovered from Friday's problems. However, the German will have a five-place grid penalty applied after qualifying due to a gearbox change.
Williams had the better of Red Bull in final practice but Daniel Ricciardo and Daniil Kvyat are expected to bounce back in qualifying. McLaren and Toro Rosso also look closely matched in the battle for Q3, with the former yet to reach the final part of qualifying since Honda's return to F1.
Q1 will see a fight between Sauber, Manor, Renault and Haas to avoid being eliminated in the first part of the session, with the bottom 10 drivers covered by 0.8s in final practice.
Practice has so far seen a number of mistakes made by drivers due to the low grip conditions. Turn 13 proved troublesome during FP3, with Hamilton, Fernando Alonso, Sergio Perez and Romain Grosjean all going off at the same corner, while numerous errors have also been made at Turn 2.
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LIVE: Russian Grand Prix - Qualifying
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