Valtteri Bottas started the 2019 Formula 1 season in top gear, but he's since dropped back on Lewis Hamilton. While Bottas kept Hamilton off the podium in Austria, the British driver leads the world championship by 31 points.  With Esteban Ocon breathing down his neck and other rumours flying around, the future of the Finn at Mercedes remains uncertain. According to boss Toto Wolff, Bottas knows what he must do.  "Every Formula 1 driver knows that if he does not deliver the expected performance, there is always someone else to take your place," Toto Wolff tells Motorsport-Total.com  "Valtteri knows he has to perform, he is on a team where he can win...
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