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The visitors went ahead in the first half via a superb Lorenzo Insigne strike which caught Goalkeeper Keylor Navas sleeping.

Real Madrid had a chance to level in the 12th minute when Ronaldo again found Benzema inside the Napoli box, but the striker's header was away from goal as the visitors survived a risky moment.

Among the expected 10 000 strong travelling support will be Napoli's greatest ever player as Maradona arrived in Madrid on Monday.

They have a lot of work to do, to be sure, but there's still a chance thanks to their away goal - just as long as Napoli can figure out how to contain Real Madrid a bit better back in Italy, at least.

Watch as Casemiro makes it 3-1 in favour of Madrid, with an inch-perfect volley that was destined for the back of the net.

Napoli had a goal disallowed for offside in the 80th.

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Champions League - Follow the Football match between Real Madrid and Napoli live with Eurosport. Ronaldo was able to get by Kalidou Koulibaly to the end line and set up Kroos for his signature, low and well-placed shot.

The home side took the lead shortly after the break as Ronaldo picked out Toni Kroos, who placed the ball into the far corner, 2-1.

Napoli, post Gonzalo Higuain, have found a surprise replacement for goals in Belgian Dries Mertens, having already scored 16 goals in Serie A, the winger turned forward has scored four and assisted two of Napoli's last eight Champions League goals.

Napoli's main goal threat also tested Navas, but the Costa Rican stopper ably came and met his effort from Insigne's through ball.

Napoli's sensational free-scoring form that has seen them reel off an 18-game unbeaten run has seen the Italians' hopes of shocking the holders soar.

  • Tabitha Byrd