Nico Rosberg says he is driving "on a knife-edge" at this weekend's Indian Grand Prix, with his Mercedes team trialling various set-ups in a bid to close the gap to Red Bull. As was the strategy of pole-sitter Sebastian Vettel, Rosberg and team-mate Lewis Hamilton decided to use Pirelli's Soft compound tyre in the final shootout phase, handing the pair second and third place grid slots for tomorrow afternoon's race. But Rosberg admits the result was only possible due to his "on the limit" approach. "I'm completely on a knife-edge," said Rosberg. "I'm on the limit, trying to extract that little tenth more. We've tried new things with set-ups, and until now...
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