Unstoppable Vettel leads Chinese Grand Prix Practice

Red Bull driver Sebastian Vettel set the fastest time in Friday's practice for the Chinese Grand Prix, further indicating the Formula One championship leader will be the man to beat this weekend.

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Vettel's best time was just 0.2 seconds faster than McLaren's Lewis Hamilton, who in turn was a 0.1 second faster than teammate Jenson Button.

The Mercedes pair of Nico Rosberg and Michael Schumacher were fourth and fifth respectively, with Ferrari's Felipe Massa in sixth.

Red Bull's Mark Webber was down in 10th as he concentrated on testing a high-fuel setup, while Ferrari's Fernando Alonso was 14th fastest after missing much of the session with a hydraulic problem.