Kevin De Bruyne has signed for Napoli as a free agent after being released by Manchester City, the Serie A champions' president Aurelio De Laurentiis confirmed on Thursday.
A 2–0 victory over Cagliari in the final round ensured they stayed ahead of Inter Milan, sending the Campania region into rapturous celebration.
Antonio Conte has dragged Napoli back from disaster and restored them to the top of Serie A but his future at the Scudetto winners is in doubt even after a triumphant season.
With second-placed Inter Milan also playing out a 2-2 draw against Lazio in a simultaneous kickoff, Napoli will head into their final match against Cagliari with a one-point advantage.
Antonio Conte's team are one step closer to a second league title in three seasons thanks to Giacomo Raspadori's well-struck free-kick in the 24th minute of a match which was briefly stopped by home fans' fiery protest against the league following the death of a beloved club physi
Two first-half goals from Scott McTominay helped Napoli to a 2-0 home success, sending them above defending champions Inter Milan in the standings after Simone Inzaghi's side stumbled to a shock 1-0 home loss against AS Roma.
Scotland midfielder McTominay nodded home his 10th goal in all competitions this season from Giacomo Raspadori's cross in the 72nd minute to save Napoli's blushes after a drab display in northern Italy.
Belgium striker Lukaku has scored 12 times and set up 10 more in Italy's top flight this season and has been key to Napoli's battle with reigning champions Inter for the league title.
The win moved Napoli three points behind leaders Inter Milan, who beat Udinese 2-1, while third-placed Atalanta lost 1-0 at Fiorentina.
Manchester City beat Napoli 2-1 in their Champions League Group F match to maintain their 100 percent record after three games.
Champions Juventus and Napoli pull clear at the summit of Serie A as they continue their faultless campaigns as Inter Milan fall behind.
A Jose Callejon goal help Napoli ease into the Champions League group stage, while Sevilla also went through and Celtic suffer a scare in Kazakhstan before winning their play-off tie.
Juventus, beaten Champions League finalists twice in the past three seasons, begin the 2017-2018 season looking to extend their current record of six consecutive title wins in Italy's Serie A.
Diego Maradona enjoys a wild night in Naples after he attended a ceremony and received honorary citizenship from the Italian city.
Two goals each from Stephan El Shaarawy and Mohamed Salah keep Roma's Serie A title hopes alive as they twice came from behind to win 5-3 at Chievo Verona, while Napoli also stays in the running with a 4-1 home win over Fiorentina.
Gonzalo Higuain scored twice on his old Napoli hunting ground to send Juventus into the Italian Cup final despite a 3-2 defeat to their bitter rivals on Wednesday.
Serie A leaders Juventus withstood prolonged pressure as they held out for a tense 1-1 draw at third-placed Napoli in an absorbing match on Sunday.
Napoli were left fuming after Juventus were awarded two penalties early in the second half on their way to a 3-1 win in the first leg of their Italian Cup semi-final on Tuesday.
Napoli's remote hopes of overhauling Serie A leaders Juventus were dealt a possibly fatal blow when they lost 2-0 at home to Atalanta on Saturday and the Turin side ploughed on by beating Empoli by the same score.
