Valtteri Bottas says Williams must target the leading Mercedes pair in Sochi at a circuit which plays to the strengths of the FW37.
The Finn claimed his fourth career F1 podium finish when the Russian event made its debut on the calendar last year, while also setting the lap record of 1m 40.896s.
Bottas was the only genuine threat to the dominant Mercedes duo of Lewis Hamilton and Nico Rosberg in 2014, finishing 17 seconds off race winner Hamilton, and the Williams driver says he and the team must take the fight to the German manufacturer again.
“We had a good result last year in Russia so we're expecting another strong weekend and a good collection of points,” Bottas said. “We all know the track now and it has a really good flow, with the long straights a good fit for our car.”
Bottas also wants to carry the momentum from a string of positive results after finishing in the top five in the past three races and is confident of continuing the run this weekend.
“Pace wise we were close to Mercedes in Japan and I think we can be close again in Sochi, just like we were in 2014,” he said. “The fans were passionate last year so we look forward to putting on another good show for them.”