Silverstone: Nico Rosberg completed a clean sweep of Friday's practice sessions for this weekend's British Grand Prix, ending the opening day of running at the top of the timesheets in his Mercedes.


Nico Rosberg (inset) drives during the second practice session at the Silverstone circuit ahead of the British Grand Prix. Pics/AFP 

Rosberg, who also topped the opening session of practice, set a time of one minute 34.155 seconds around a hot and sunny Silverstone circuit to end the day fastest ahead of the Ferrari pair of Kimi Raikkonen and Sebastian Vettel.