Webber tipped for F1 surprise

Team principal Christian Horner believes Red Bull's Mark Webber is the 'dark horse' to win this year's Formula One world championship. Webber's Red Bull team-mate Sebastian Vettel, McLaren's all-British line-up of Jenson Button and Lewis Hamilton, Fernando Alonso following his move to Ferrari and the returning Michael Schumacher have all been mentioned as possible champions this season.

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