Carlos Sainz led after the first two hours of the final day of Formula 1 testing, following heavy disruption due to track problems.
The Ferrari driver set a time of 1:31.247s to top the timesheet after just 15 laps, ahead of Red Bull's Sergio Perez by 0.541s.
Lando Norris was third quickest in the McLaren a further 0.861s back, with Lance Stroll and Lewis Hamilton completing the top five.
Half an hour into the session a drain cover came loose at Turn 11, in a carbon copy of the incident that caused a lengthy delay during the mornings session of Day 2.
Perez appeared to take the same wide line that both Charles Leclerc and Hamilton took yesterday, which dislodged the cover on the outside of the kerb.
Red Bull took a look at the floor on his RB20 to see if it caused damage, but found that it did not impact the car.
After a track inspection the session was delayed by around an hour and 15 minutes, prompting the FIA to cancel the midday launch break in favour of running the day through continuously.
Result Day 3 - Wintertest Bahrain
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