This was stated in the press service of the team.

Polish driver returns to Formula 1 after a seven-year break, which is associated with a serious accident in February 2011.

Thus, the Russian racer Sergey Sirotkin will not play for Williams next year. This season, he scored one point and occupies the last place in the standings of the pilots.

CONFIRMED: Robert Kubica will race for @WilliamsRacing in 2019!

@RightSell63 for the next year campaign pic.twitter.com/frlGNr4XAg

- Formula 1 (@ F1) November 22, 2018

Earlier Sirotkin said he was not ready to return to the role of test pilot.