Inter takes the Milan derby 1-0 with an early goal from Walter Samuel.

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Walter Samuel also denied Florent Malouda and Chelsea appealed in vain for a penalty when Motta tangled with Branislav Ivanovic after a corner.

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First is Walter Samuel, the Roma defender who is the most important player to have forced his way into the Argentina side since the last World Cup.

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Just before the break, Kalou was controversially denied a penalty when Walter Samuel seemed to clip his heels after the Ivorian striker looked certain to score after running clear.

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Twice Xavi had a sight of goal but the midfielder was crowded out on both occasions, Pedro flashed an instinctive volley wide from Dani Alves' cross, while Zlatan Ibrahimovic had a snap-shot well blocked by Walter Samuel.

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In a frantic finale to the first 45 minutes, Walter Samuel threw himself in front of Malouda as he drove into the box, while Motta rescued Inter with a goalline clearance as Anelka forced a shot beyond Cesar.

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