George Russell said he is "absolutely buzzing" for next season's Formula 1® world championship after he agreed on a move to Mercedes.
It was confirmed on September 6 that Valtteri Bottas would be ending his Mercedes stint after five seasons with the team, joining Alfa Romeo for 2022 on a multi-year deal.
Bottas has served as the second-seat driver to Lewis Hamilton, helping Mercedes to four constructors' titles.
However, with the Finn now joining Alfa in the wake of Kimi Raikkonen's impending retirement, Mercedes have signed up Hamilton's fellow Briton Russell from Williams.
"Looking ahead to next season, I'd be lying if I said I wasn't absolutely buzzing," Russell said in a statement released by Mercedes.
"It's a huge opportunity and one I want to grab with both hands. But I'm under no illusions as to the scale of the challenge; it's going to be a steep learning curve.
"For now, though, I have nine more races as a Williams driver, and I want to make sure they are the best nine of my time with the team.
"Then, and only then, can I turn my attention to 2022."
I’m immensely proud to have worked alongside @ValtteriBottas for the last 5 yrs. We’ve been part of a team that has delivered 4 Constructors’ Championships and we’ve motivated one another to keep pushing through the ups & downs. Thank you VB🙏🏾 let’s finish strong. pic.twitter.com/4YRJAhCzSN— Lewis Hamilton (@LewisHamilton) September 6, 2021
The 23-year-old, who has signed a long-term contract with Mercedes, has spent the last three seasons with Williams and has achieved one podium finish in his Formula 1® career to date.
However, that came in contentious circumstances at this season's Belgian Grand Prix as Russell was awarded second after only two laps had been completed in sodden conditions.
When Hamilton returned a positive positive coronavirus test before the 2020 Sakhir Grand Prix Russell stepped in to replace him, finishing ninth.
Russell revealed he is excited to become a teammate of Hamilton's.
"I've looked up to Lewis since I was in go-karts," Russell said of the seven-time F1® champion.
"The opportunity to learn from someone who has become a role model both on and off the track can only benefit me as a driver, a professional, and a human being."
Russell was on the Mercedes young driver programme in 2017 and won that season's GP3 Series championship before he became Formula 2® champion the following year.
Mercedes team principal Toto Woolf claimed Russell and Hamilton will provide a formidable team over the next few seasons.
"We are very happy to confirm that George will have the opportunity to take the next step in his career and join Mercedes," Woolf added.
"He has been a winner in every racing category – and the past three seasons with Williams have given us a taste of what the future could hold for him in F1®.
"Now, it is our challenge together to help him continue learning within our environment and alongside Lewis, the greatest F1® driver of all time.
"I am confident that as their relationship grows, they will form a strong team and deliver for Mercedes on and off the track in the years to come.
"It's a weight off our shoulders to have our plans for 2022 clear and announced."