Article To news overview © Red Bull Content Pool / Getty Images Sergio Perez expects Mercedes to lead the way at the Russian Grand Prix, due to their unbeaten record at the Sochi Autodrom since the event joined the Formula 1 calendar in 2014. Perez could play a pivotal role for Red Bull this weekend because his teammate Max Verstappen will carry a three-place grid penalty, meaning he will start no higher than fourth, after being deemed predominantly to blame for his incident with Lewis Hamilton at Monza. "Mercedes have won every race at Sochi since 2014 so they're the favourites this weekend," said Perez. "They're definitely going to be hard to beat but like always we will...
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