Nico Rosberg (right) beat his teammate again
Nico Rosberg (right) beat his teammate Lewis Hamilton againGetty Images

Nico Rosberg has won the Russian Grand Prix in Sochi, extending his lead at the top of the Drivers' Standings over teammate Lewis Hamilton to 43 points. The 30-year-old German started the race on pole and cruised to his seventh consecutive victory ahead of the defending World Champion, who came from tenth on the grid to finish second.

The Mercedes drivers continued their team's domination of the season, as they came home ahead of Kimi Räikkönen, who completed the podium positions. After the race, Hamilton - who produced a stunning drive to claim second - said he could have won the Grand Prix if he had not experienced engineering troubles in Sochi. At one stage, Hamilton was closing in on his Mercedes teammate, but was forced to back off because his engine had a water-pressure issue.

"There wasn't a doubt in my mind I could win it," Hamilton said, according to the BBC. "I had the pace, but then I had the problem with the engine again and I had to back off."

Meanwhile, Mercedes team boss Toto Wolff revealed both of their drivers suffered technical problems during the race. "We had a rough seas. No simple plain sailing," Wolff said. "Lewis had a worry, we had a water leak, and we just needed to bring the car home.

"And we also had a problem on the engine on Nico's car as well, where it was giving strange signals from the power-unit."