Valtteri Bottas will start the Brazilian Grand Prix three positions lower than he qualified after being punished for overtaking under red flags in second free practice.
The Finn was under investigation following FP2 after he was witnessed passing another car when red flags were deployed to clear the expired McLaren-Honda of Fernando Alonso.
As a result, Bottas has been given a three place grid penalty for the infringement.
Speaking before the confirmation of the penalty, Bottas believed Williams had the pace to challenge Ferrari having finished the first day around the Interlagos track in sixth.
“I'm sure we can fight with Ferrari, although they won't be easy to beat. I think we can still improve with the standard procedures we always have for Saturday, so I think it was not a bad Friday for us.
“I felt more and more comfortable with the car and the main thing we were trying to do today was to get the tyres to work in the right pressure and the right temperature. In the afternoon it started to feel quite good, the car was quite consistent even during the long runs with the softer tyre. I think we can be strong here.”