Finland born F1 driver Valteri Bottas to partner Lewis Hamilton at Mercedes in 2017 season.
Brazilian Felipe Massa came out of withdrawal to change the 27 years old Finn at Williams. The Brazil born became the first Brazilian to win the Brazilian Grand Prix in 2006. Mercedes newish driver Pascal Wehrlein, signs the Swiss Sauber team.
Felipe Massa said " He was extremely motivated to be coming back and Bottas had been given great opportunity."
The 35 years old declared his retirement in the last season from F1 because in Williams team he was not wanted at all and there was no other possible good seat for him.
Williams deputy team principal Claire Williams said " With Valteri having a unique opportunity to join the constructor's Champions, we have been working hard to ensure that an agreement could be made with Mercedes."