Gearing up for the Singapore Grand Prix

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Williams team mechanics check the air pressure in their tyres at the Marina Bay City Circuit.

Photo: AP

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Sebastian Vettel of Ferrari shares a light moment with a member of his former team, Red Bull Racing.

Photo: AP

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The Mercedes crew practice tyre changes.

Photo: AP

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World champion Lewis Hamilton of Mercedes speaks at a promotional event ahead of the Singapore Grand Prix.

Photo: AP

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Ferrari's mechanics push Kimi Raikkonen's car down the pitlane for scrutineering.

Photo: AP

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Williams driver Valtteri Bottas poses for a photograph with a fan.

Photo: AP

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