It'll be his fifth campaign.
Valtteri Bottas has been retained by Mercedes for 2021.
The Finnish driver heads into this weekend's 70th Anniversary Grand Prix at Silverstone 30 points adrift of team-mate Lewis Hamilton in the world championship.
Next season will mark Bottas' fifth campaign with the Silver Arrows.
“Very happy and very proud!” 💙 #BottasAnnounced pic.twitter.com/i5oy34W991
— Mercedes-AMG F1 (@MercedesAMGF1) August 6, 2020
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