Napoli coach Gennaro Gattuso admits he's a fan of Juventus counterpart Maurizio Sarri.

Sarri returns to the San Paulo today for the first time since his axing two years ago.

Gattuso said, “Preparing to face Juventus gives you a headache. They play well, have so many champions, pass it around cleanly and you can see the influence of Maurizio Sarri.

“He is one of the best coaches in the world and built a perfect machine. I have great respect for Sarri, and will admit I did copy and paste some of his tactical ideas. I like the way he views football.

“There will be many fans at the San Paolo and it is our duty to put in a great performance to boost that enthusiasm. The atmosphere is an important strength for us to draw on and enthusiasm makes everything seem easier for us.

“What I want is for us to sniff out potential danger, work for each other and not let the opposition take control of the game. I saw many positives against Lazio and we need to follow that path.

“Juventus play in a different way to Lazio, as for example the Biancocelesti always have five men on the defenders, whereas Juve are more technical than physical. We must cover more passing lines, try to cut certain players out of the game. It's far more complicated.

“We must try to stop the ball reaching those who play right behind the striker, block those who make the through runs. Unfortunately, there are quite a lot of players who fit that description."