HALF TIME: MILAN 1 - 1 NAPOLI. The Rossoneri deservedly opened the scoring when Mathieu Flamini's sweetly-struck effort flew past Morgan De Sanctis from the edge of the box, but the lead lasted less than three minutes after Goran Pandev coolly placed a shot past Christian Abbiati from Marek Hamsik's neat pass. The Partenopei certainly finished the half the stronger.
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Milan look to snatch a second goal just before the break when Robinho finds Niang on the edge of the box, but the Frenchman drags his effort well wide of the post.
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NAPOLI GO CLOSE TO TAKING THE LEAD. Edinson Cavani is starting to get a sniff of goal and he produces a wonderful touch to control Cannavaro's long ball over the top, but the Uruguayan cannot produce the finish to match as Abbiati produces a vital fingertip to deny his lob. Napoli finishing the half strongly.
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Riccardo Montolivo finds space to line up a shot from the edge of the box, but his low left-footed drive is well saved by De Sanctis. Just under five minutes until the break.
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Dzemaili looks to slip Cavani through on goal but the Uruguayan is denied a one-on-one when the linesman adjudges that he is offside.
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Milan look to regain the lead when Muntari produces an acrobatic volley from the edge of the box, but De Sanctis watches the ball comfortably roll past his left post.
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Kevin-Prince Boateng 
M'Baye NiangMilan are forced into an early change when Kevin-Prince Boateng is forced off with an injury. French youngster M'Baye Niang comes on to replace him.
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Napoli find space with Zuniga down the left again and he picks out Hamsik on the left corner of the box, but the Slovakian's shot flashes into the side netting.
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Robinho does fantastically to latch onto Constant's searching ball over the top and the Brazilian tries to square for Pazzini, but the Italian forward is marshalled excellently by Britos and Napoli clear.
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Marek Hamsik33
GOAL Goran PandevNAPOLI EQUALISE! Milan's lead lasts less than three minutes when Zuniga releases Hamsik down the left and the Slovakian coolly picks out Pandev in the box, who nudges the ball past Abbiati confidently. Where was the defending? This game has burst into life, 1-1!
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GOAL Mathieu Flamini1-0 MILAN! Fantastic strike from Flamini. The French midfielder makes it two goals in two games when he capitalises on a loose ball on the edge of the box after Britos had dispossessed Pazzini, sweeping the ball into the bottom corner and past the flailing arm of De Sanctis. Massive goal for Juventus.
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Edinson Cavani capitalises on an error in the Milan half but with no support, the Uruguyan unleashes a piledriver from distance which swerves wildly over the crossbar.
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Brave goalkeeping from De Sanctis when he plucks the ball out of the air to prevent Pazzini from converting Zapata's header back across goal. His opposite number, Abbiati, has hardly been troubled so far with both sides lacking that cutting edge in the final third.
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Neither Pazzini nor Cavani have received much service in the opening stages and the game is very congested in the midfield. There have not been many clear-cut opportunities so far.
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Marek Hamsik hasn't seen too much of the ball so far but he nearly breaks the deadlock when he looks to slide Pandev through on goal, only to be denied by a fantastic interception from Mexes.
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Really poor play from Napoli when Pandev is adjudged offside after receiving Cannavaro's return pass from the corner. I think it's safe to say that the next one will definitely be launched into the Milan box.
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The Napoli players are screaming for a penalty when Hamsik's cross appears to strike the arm of Flamini. However, Gianluca Rocchi is not interested in the appeals and waves play on.
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Milan are looking for their tenth successive home victory in all competitions this evening and look good value to extend that run by their performance in the start of this match. Can Allegri's side find the breakthrough?
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Pandev takes a short corner to Cannavaro, but the defender's cross into the box fails to beat the first man and Montolivo heads clear. Tentative start from the visitors.
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Dzemaili concedes possession cheaply to Constant and the left-back nearly notches an assist when his cross is poked narrowly wide at the back post by Boateng.
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This time it is Kevin Constant who gets forward from full-back and the Guinean tests De Sanctis with a strong effort which took a deflection off of Maggio.
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Diego Maradona was the matchwinner last time Napoli beat Milan in April 1986. Can Mazzarri's side claim a rare victory at the Giuseppe Meazza?
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Montolivo delivers a corner into the Partenopei box and it is headed just over by Zapata. Good start from the home side here.
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Ignazio Abate is getting forward excellently down the right and he gets in behind Zuniga once again, but can only find the shins of Cannavaro with his low cross.
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Boateng has looked lively so far and he drops off to the edge of the box once again but his shot flashes wide of the target.
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GOOD SAVE FROM DE SANCTIS! Milan nearly take an early lead when Abate cuts the ball back for Boateng on the edge of the box and the Ghanaian's shot takes a wicked deflection off the heel of Cannavaro, forcing the Napoli goalkeeper to make a smart reflex stop.
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Christian Maggio looks for the spectacular when he lines up a strike from distance but it takes a deflection off Muntari and Abbiati claims.
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Blerim Dzemaili has been in wonderful goalscoring form as of late and he does well to win a corner down the right but it is headed safely clear by Boateng.
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Milan look for the early advantage when Boateng dummies Abate's pass into the feet of Pazzini, but Campagnaro is alert to nick the ball off the Italian's toes and clear the danger.
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Napoli get the ball rolling...
Reports that El Shaarawy is on the bench because he will be suspended for the match against Juventus if he picks up a caution this evening. Risky gamble from Allegri.
The teams emerge from the tunnels led by captains Christian Abbiati and Paolo Cannavaro. A fantastic atmosphere here at the Giuseppe Meazza. Can Milan end Napoli's title dream? Prepare for kickoff...
Napoli’s last victory in this fixture was in April 1986, followed by 10 defeats and nine draws between Serie A and the Coppa Italia. Can they end that run tonight and put pressure on Juventus? Let me know your thoughts via Twitter @MaxBentley1.
There have been 129 previous meetings between the sides, with Milan victorious on 53 occasions. There have been 43 draws whilst Napoli have claimed 33 wins.
Just how important is Edinson Cavani to Napoli? Well, without the Uruguayan's goals, Napoli would be 15 points off their current total and lying in eighth position in the league table. Can the Partenopei hold on to their prized asset in the summer?
Walter Mazzarri makes only change from the side which defeated Genoa 2-0 with Colombian wing-back Juan Zuniga entering the fray, in place of international colleague Pablo Armero. Serie A top goalscorer Edinson Cavani (22 goals) partners Goran Pandev up front.
Allegri makes three changes to the side which let a two-goal lead slip in the 2-2 draw with Fiorentina last weekend. Mario Balotelli is suspended after picking up his fifth booking and he is replaced by Giampaolo Pazzini up front. Kevin Constant comes in at left-back for Mattia De Sciglio whilst Stephan El Shaarawy is a shock exclusion from the lineup, with Robinho in his place to make only his second start in 2013.
NAPOLI (3-5-2): De Sanctis; Campagnaro, Cannavaro, Britos; Maggio, Behrami, Dzemaili, Hamsik, Zuniga; Pandev, Cavani.
MILAN (4-3-3): Abbiati; Abate, Zapata, Mexes, Constant; Flamini, Montolivo, Muntari; Boateng, Pazzini, Robinho.
Here are tonight's lineups starting with the Rossoneri...
The resurgence of Milan since the winter break has been one of the tales of this Serie A campaign and Massimiliano Allegri's side have surged up the league table to occupy third place and look strong candidates for a Champions League position. The Rossoneri are unbeaten in 13 league matches, since a 4-2 defeat to Roma back in December, but tonight they face a tricky test as Walter Mazzarri's Napoli come to town. The Partenopei sit in second position, four points ahead of Milan. With Juventus nine points clear at the summit, it seems that anything but a win tonight would surely end their fading hopes of a first Scudetto title in 23 years. They don't get much bigger than this! My name is Max Bentley and I'll be guiding you through this evening's action from the Giuseppe Meazza. Feel free to let me know your thoughts and predictions via Twitter @MaxBentley1.