Mercedes have taken a 1-2 in first practice for the Russian Grand Prix at the Sochi Autodrom.
Valtteri Bottas used the Soft compound tyre to set a 1:34.427 and finish 0.211s clear of teammate Lewis Hamilton.
Red Bull's Max Verstappen finished in third place, a further 0.016 seconds behind, also on the Soft tyre.
Ferrari's Charles Leclerc utilised his new-spec power unit to finish in fourth place, with Aston Martin's Sebastian Vettel starting his weekend well in fifth.
The full results from the first practice session for the Russian GP can be seen below.
Practice 1 - Russian
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Follow Rudy van Buren as he takes you on a flying lap around the Sochi Autodrom in Russia.