Practice One - Hamilton leads Mercedes one-two

Mercedes' Lewis Hamilton ended the opening practice session in Germany on top of the timesheets at the Nurburgring on Friday morning. Hamilton's best lap of 1m 31.754s was just over two-tenths of a second quicker than that of team mate Nico Rosberg, who improved right at the end of the 90-minute session to 1m 31.973s. Mark Webber, third for Red Bull, was a second shy of Hamilton as everybody used Pirelli's revised tyres

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