With several teams expecting upgrades to their cars at the Spanish Grand Prix, Williams driver Valtteri Bottas believes the race at the Circuit de Catalunya will play a decisive role in deciding the outcome of the 2014 season.
Williams are one of the teams that expect a major upgrade to be available in Barcelona, and Bottas is confident that his team will continue their strong start to the season in Catalunya.
"Yes, I think it's going to be an important weekend," the Finn told Autosport.
"It's going to give some direction of how the rest of the season is going to be.
"If we can make some steps forward, it would be really nice, but it is going to be interesting.
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