Nico Rosberg denied suggestions that he may have been nursing a problem with his Mercedes midway through the Brazilian Grand Prix as he celebrated back-to-back late-season wins with a repeat success at Interlagos.

Starting from his first consecutive pole, the German fended off a challenge from team-mate Lewis Hamilton into the first corner and was able to remain ahead through the first couple of stints as the Briton found it hard to remain close enough to contemplate a move. There was one point, 16 laps in, however, where the world champion closed in dramatically, only for Rosberg to be able to pick up his pace again and re-establish the gap between them.

By the end of the race, with Hamilton unable to implement a different strategy to try and wrest a first Brazilian race win away from his team-mate, Rosberg eased away to win by nearly eight seconds, insisting that he was always in control of the battle between the two Silver Arrows.

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"It went perfectly," he insisted, "Lewis put up a good challenge, but I could control it and I'm pleased with that. There were no issues - I was just controlling the pace, never overdoing it, not risking getting too much degradation. We saw Lewis dropping off a lot with degradation at the end of the second stint and that showed that it was important to take precautions."

Seemingly holding all the aces as the season heads towards it finale in Abu Dhabi, and with second place in the championship now secured after adding ten points to his advantage over Sebastian Vettel, Rosberg aims to go into the winter break on a high.

I don't have an exact explanation [for winning races and getting poles now], otherwise I would have done it earlier in the season," he admitted, "Lewis obviously had the upper hand in the first part of the season, but I've been working at it, so I'm pleased that it has turned around at the moment. I needed to turn it around and, at the moment, it's going very well. I'm pleased with that and now I want to win the next race in Abu Dhabi."