Rossi and Ma signed as Caterham reserves

American Alexander Rossi and China's Ma Qing Hua have been confirmed as Caterham's reserve drivers for 2013, joining racers Charles Pic and Giedo van der Garde in the team's line-up for the new season. Rossi, 11th in last year's Formula Renault 3.5 championship, first drove for Caterham at the 2011 Abu Dhabi young driver test

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