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German driver Sebastian Vettel of Ferrari prepares during the second practice session of the Formula One Singapore Grand Prix held at the Marina Bay Street Circuit in Singapore, on Sept. 20, 2019. (Xinhua/Then Chih Wey)
German driver Sebastian Vettel of Ferrari prepares during the second practice session of the Formula One Singapore Grand Prix held at the Marina Bay Street Circuit in Singapore, on Sept. 20, 2019. (Xinhua/Then Chih Wey)