Max Verstappen concluded Friday practice on top of the timesheets, three-tenths ahead of the rest of the field in Sochi.
Sebastian Vettel was fifth in the second Ferrari, over one second down on the session-topping time set by Verstappen.
Alexander Albon had a session of limited running, as Red Bull discovered floor damage early on, meaning he set just 18 laps during the 90 minutes.
Nico Hulkenberg was eighth and in between the two pink cars, while Albon rounded out the top ten after he set a handful of laps in the final 20 minutes.
Bahrain International Circuit - Winter testing
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