Formula 1 testing: Red Bull's best work - Daniel Ricciardo
Red Bull's Red Bull's Daniel Ricciardo says that day one of the final pre-season test in Bahrain was his team's "best work of the winter".
There were more problems for Red Bull, though, with Ricciardo eventually consigned to the garage as Force India's Sergio Perez set the quickest time.
Williams's Valtteri Bottas set the second fastest lap of the day, with Ferrari's Kimi Raikkonen third.
Available to UK users only.