Formula 1: Is Daniel Ricciardo ready for Red Bull?

Toro Rosso's Daniel Ricciardo has been widely tipped as a potential successor to his compatriot Mark Webber at Red Bull, but the 24-year old Australian admits he has yet to hear whether he has the drive or not.

Red Bull team principal Christian Horner says they have not decided who will replace Webber for the 2014 season.

While Sebastian Vettel says he does not know if Ricciardo is ready to make the step up but would welcome his as his new team-mate.

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