Lorenzo Insigne scored two goals and set up another for Allan as Napoli sent a message by destroying Milan 4-0 at San Siro.

The Rossoneri needed a boost after defeat to Genoa, but Alessio Romagnoli was suspended with Mario Balotelli, Jeremy Menez, Philippe Mexes, M’Baye Niang and Ignazio Abate injured, so Rodrigo Ely stepped into the back four.

Cristian Zapata gave the ball away in the final third and Lorenzo Insigne’s through ball sent Allan clear to put Napoli in front at San Siro. The midfielder scored only once in 104 Serie A appearances for Udinese, yet it was his third of the season for Napoli.

Gonzalo Higuain got away from defenders with a magnificent first touch, but the finish was too central to beat Diego Lopez.

Luiz Adriano attempted a scorpion kick goal when the cross was behind him, while Kalidou Koulibaly intercepted a dangerous Milan counter and Higuain’s angled drive flashed across the face of goal.

A Pipita back-heel flick was deflected wide by Zapata on a Marek Hamsik assist. Just before the break, Napoli wasted a golden opportunity on the counter with Jose Callejon’s misplaced pass.

Straight after the restart, Napoli doubled their lead with another well-worked team move. Insigne burst down the left, exchanged passes with Higuain and smashed the right-foot finish across Diego Lopez from a tight angle.

Pepe Reina plucked a dangerous Rodrigo Ely header out of the air, then Luca Antonelli decisively blocked Callejon on the counter-attack when the Spaniard’s first touch let him down from another Insigne assist.

Ely tripped Higuain on another counter and Insigne completed his brace with a magnificent free kick into the near top corner. The native Neapolitan put in a Man of the Match performance with two goals and an assist.

It got even worse for the Rossoneri and specifically Ely, who came sliding in to accidentally turn a Faouzi Ghoulam cross into his own net for 4-0. Supporters in the stands left in droves, as it’s the first time Napoli have ever won here by four clear goals.