Napoli see off Crotone to move third in Serie A

Gennaro Gattuso's side are on 20 points, level with Juventus and three behind leaders AC Milan after goals from Lorenzo Insigne, Hirving Lozano, Diego Demme and Andrea Petagna earned the away side a simple three points despite starting without Dries Mertens and the injured Victor Osimhen.

Milan can go five points ahead of second-placed local rivals Inter Milan when they travel to Sampdoria later on Sunday.

Insigne opened the scoring with a trademark curling strike after cutting in from the left with half an hour gone, and the task became simpler for the away side five minutes after the break when Jacopo Petriccione was sent off for a late, high challenge on Demme.

Italy international Insigne then laid on Lozano for the second with a superb long pass that left the Mexican with a simple finish, and Demme made sure of the result with a drilled low strike 14 minutes from the end following a lay-off from substitute Mertens.

Belgium forward Mertens then supplied the pass that allowed Petagna to hammer home the fourth in stoppage time as Napoli temporarily closed the gap between them and Milan.