Napoli held their nerve to clinch their fourth ever Serie A title on the final day of the season with a 2-0 win over Cagliari, sparking wild celebrations in Naples.
Ex-Manchester United pair Scott McTominay and Romelu Lukaku scored the goals as Antonio Conte's side pipped Inter Milan to the Scudetto by one point.
Napoli had drawn their last two games to allow Inter back into the title race and anything other than a win on Friday would have opened the door for Simone Inzaghi's side to retain the trophy.
Inter did their job by beating in-form Como 2-0 and led the table for 22 minutes after Stefan de Vrij’s first-half header put them into the lead, while Napoli wasted a number of chances at a nervy Stadio Diego Armando Maradona.
But McTominay acrobatically fired in his 12th goal of his debut Serie A campaign to set the league leaders on the way to a second Scudetto in three years.
Former United team-mate Romelu Lukaku added a superb second soon after half-time to settle any remaining nerves.
Antonio Conte, in a first season in charge which saw striker Victor Osimhen leave in September and star winger Khvicha Kvaratskhelia join Paris St Germain in January, lifted his sixth major league title as a manager following successful spells with Juventus, Chelsea and Inter.
Conte was not on the touchline for Friday’s decisive game as he served a touchline ban after being sent off during last weekend’s 0-0 stalemate with Parma.
Inter boss Inzaghi was also in the stands for the finale after he saw red in Inter’s dramatic 2-2 draw with Lazio.
His side had few problems in sweeping aside Cesc Fabregas’ Como, whose eight-match unbeaten run came to an end.
De Vrij headed them ahead before ex-Napoli goalkeeper Pepe Reina saw red on the stroke of half-time in his final game as a professional.
Joaquin Correa added another for Inter, but almost simultaneously Lukaku’s strike in Naples ended the Nerazzurri’s challenge.
But they can still end the season with major silverware as they face PSG in the Champions League final a week on Saturday.
In Spain, Manchester United winger Antony scored for the ninth time during his loan spell at Real Betis in their season-ending 1-1 draw with Valencia.
