Lewis Hamilton: 'Bahrain GP will be tough for Mercedes'

Lewis Hamilton has said that he is expecting a "tough battle" for his Mercedes team in Sunday's Bahrain Grand Prix.

The British driver finished 10th-fastest in second practice on Friday, 0.822 seconds off Lotus driver Kimi Raikkonen, who set the fastest time.

Hamilton told BBC Sport: "I don't think we are as far off as it looks. I think other people were on different fuel loads.

"It looks like we're 0.6 seconds off the pace. I think it's maybe half that; maybe a bit less. But it will be a tough battle for sure this weekend."

Hamilton finished third in last weekend's Chinese Grand Prix.