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.
The 62-year-old Mazzarri became the second man to be sent packing this season by the ailing Italian champions.
Nigeria striker Victor Osimhen will leave Napoli this summer and join "either Real Madrid, Paris Saint-Germain or an English club", the Italian club's president and owner Aurelio De Laurentiis said on Friday.
Napoli put aside their recent troubles on Thursday by reaching the Italian Super Cup final with a convincing 3-0 win over Fiorentina in Riyadh.
Napoli striker Victor Osimhen has replied angrily to suggestions that he would leave the Serie A side for Saudi Arabia at the end of this season from agent Mamuka Jugeli, who represents club team mate Khvicha Kvaratskhelia.
Italy's highest court cleared the late Agentine soccer legend Diego Maradona of tax evasion charges, ending a 30-year-long legal battle between the ex-Napoli striker and revenue authorities.
Defending Serie A champions Napoli saw their non-winning league ways continue Friday with a goalless draw against mid-table Monza.
Yann Bissek's first goal in Italy just before half-time at the San Siro and a late finish from Nicolo Barella were enough for Inter to bounce back from cup defeat to Bologna midweek and keep closest challengers Juventus at bay.
Victor Osimhen has signed a contract extension with Napoli until 2026, the Serie A champions announced on Saturday.
The Italian champions qualified second in Group C behind Real Madrid thanks to Serder Saatci's clumsy own goal and Victor Osimhen's first strike since early October, both which came in the first half.
Osimhen, who led Napoli to win the Italian League title last season, beat Paris Saint-Germain's Morocco right-back, Achraf Hakimi and Liverpool's Egypt winger, Mohamed Salah, to win the top award.