Toto Wolff is anticipating a hard-fought Bahrain Grand Prix for Mercedes
Valtteri Bottas secured his first ever pole, edging out his team-mate Lewis Hamilton as Mercedes locked out the front row of the grid for the first time this season.
Joint-leader of the World Drivers' Championship Sebastian Vettel will start third as the Ferrari driver was 0.458 seconds off the fastest time.
And while Wolff was delighted to have dominated Saturday, the Austrian team boss expects Ferrari to be hot on his drivers' heels come the race itself.
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"It's a big margin to Ferrari but interestingly their drivers suffered a little bit of understeer – or at least, that's what they said – which can be an indication that they are protecting the rears for tomorrow," Wolff said last night.
"And tomorrow is when the points are going to be collected.
"Their pace was very good and there wasn't five tenths between us in the evening session.
Valtteri Bottas took pole during Saturday's qualifying session
The Bahrain Grand Prix will be no walk in the park for Mercedes
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"We have a really clever bunch of guys who are going to stick their heads together to come up with the best strategy.
"I think the race is going to be more exciting than it looks like by the qualifying gap."
Bottas has twice finished second – at the 2014 British and German Grands Prix – in F1 but is yet to secure his first win.
However, the Finn is desperate to make up for last week's Chinese Grand Prix when he threw away a podium finish by spinning while behind the safety car.
"Valtteri was very down after [his mistake in China] and he's apologised many times for it because it lost the team points," Wolff added.
"But he has paid it back today.
"Somehow it didn't look as though both of them could improve their lap-times with the second Q3 run.
"Valtteri was equal on his previous lap and then improved in the final sector by that tiny margin by which he out-qualified Lewis."