Mercedes Formula 1 team boss Toto Wolff says key to George Russell’s progress is not improving his speed but in ironing out mistakes.
Russell is a contender for a 2022 race seat at Mercedes, having boosted his chances of a drive at the team off the back of a strong showing at last year’s Sakhir Grand Prix when he stood in for Lewis Hamilton.
But while some believed Russell had done enough to justify a seat with Mercedes immediately, Wolff is more cautious about things and believes another year at Williams will be important for the youngster.

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