Zlatan Ibrahimovic says AC Milan should only worry about themselves.

Milan are now four points clear at the top of the Serie A table.

Ibrahimovic said: "We are keeping our rhythm and playing our game.

"What happens behind us gives us an advantage and the more points we get the bigger lead we have.

"I had a little luck with the goal. Robinho gave me a good ball and I saw the goalkeeper was a little off his line."

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