February 26, 2015

Raffaele Marciello looks on in the Sauber garage

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February 26, 2015

Marcus Ericsson speaks to a mechanic in the Sauber garage

© Sutton Images

February 26, 2015

Marcus Ericsson on track in the Sauber on Thursday morning

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February 26, 2015

Marcus Ericsson powers down the pit lane in the C34

© Sutton Images