Ferrari's Felipe Massa has set the fastest time in the opening practice session for this weekend's Turkish Grand Prix.
The Brazilian has won the event for the past two years and is looking to complete a hat-trick on Sunday.
McLaren's Heikki Kovalainen was second fastest in this morning's practice, with Lewis Hamilton clocking the third-fastest time in the other McLaren.
Ferrari's Kimi Raikkonen suffered a gearbox problem, while Force India's Giancarlo Fisichella was hit with a grid penalty of three positions for Sunday's race after exiting the pit lane when the lights were red.
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