Zlatan Ibrahimovic scored twice as Serie A leaders AC Milan beat 10-man Napoli 3-1 on Sunday to record their first league win in Naples for more than 10 years.

The 39-year-old powered a bullet header into the bottom corner in the first half before bundling in his second of the night after the break to take his league-high tally to 10 goals in six games this season.

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Dries Mertens pulled one back for the home side to give them hope, but a clumsy challenge by Tiemoue Bakayoko earned the Napoli midfielder a second yellow card with 25 minutes left on the clock and Jens Petter Hauge eventually notched Milan's third in stoppage time.

Yet there were concerns for the visitors when Ibrahimovic was forced off with a muscle problem with 11 minutes remaining, and the Swede was pictured sitting on the bench with an ice pack strapped to the back of his left leg.

The result means unbeaten Milan retain top spot on 20 points, two clear of Sassuolo in second and six ahead of sixth-placed Napoli.

It also ended an 11-match winless league run for the Rossoneri in this fixture and marked only their second Serie A victory away to Napoli in the 21st century, the other a 2-1 win in October 2010 in which Ibrahimovic also scored during his first spell at the club.