Sainz pitched under the TecPro barrier at turn 13 during the final practice session on Saturday.
Kimi Raikkonen was left extremely frustrated after a diesel spill and heavy rain sidetracked practices ahead of the Russian Grand Prix.
Lewis Hamilton is one victory behind Sebastian Vettel on the career wins list, which could very well change on Sunday in Russia.
Felipe Massa was one of only eight drivers who took part in the second practice of the Russian Grand Prix and he was able to record the fastest time.
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