Milan - Marek Hamsik moved to within three goals of Diego Maradona's Napoli record in a 3-1 win at Chievo.
Slovakia midfielder Hamsik had moved to within four goals of Maradona's 115-goal club record with his maiden Serie A hat trick in a 7-1 rout at Bologna two weeks ago, taking his tally to 111.
And the 30-year-old attacking midfielder moved a step closer to becoming the southerners' all-time top scorer with an easy tap-in seven minutes before halftime.
Lorenzo Insigne, who hit Napoli's only goal in a 3-1 Champions League defeat at Real Madrid in midweek, broke the deadlock on 31 minutes with a superb curling strike that beat Stefano Sorrentino at his far post.
Piotr Zielinski had Napoli 3-0 to the good before the hour with a deflected strike and although Riccardo Meggiorini beat Pepe Reina with a stunner for a 72nd-minute consolation, it proved too little too late.
Napoli's 16th win moved Maurizio Sarri's men up to second place, one point above Roma before it hosts Torino later Sunday.