Practice One - Rosberg heads Mercedes one-two

Practice One for this weekend's Chinese round got off to a relatively leisurely start in Shanghai International Circuit on Friday morning, under overcast skies and 32 degree Celsius ambient temperature. Nico Rosberg set the fastest time of 1m 36.717s for Mercedes, ahead of team mate Lewis Hamilton. The 2008 world champion was 0.454s back, on 1m 37.171s and headed the warring Red Bull duo of Mark Webber and Sebastian Vettel on 1m 37.658s and 1m 37.942s respectively.

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