Pedro De la Rosa surprised by late Sauber drive
Veteran Formula 1 driver Pedro de la Rosa reveals he was given just 10 minutes notice before practice two in Montreal that he was to replace Sergio Perez for Sauber for the Canadian Grand Prix.
Perez had indicated he was fit to race after suffering a big crash during qualifying for last month's Monaco Grand Prix.
De la Rosa says he had to quickly adjust to the steering wheel and using DRS for the first time.
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