Defender Gabbia rose highest to thump home Tijjani Reijnders' free-kick in the 89th minute and give Milan a Serie A win which pulls them out of a miserable early season slump.
Juventus were held to a 0-0 Serie A draw at Empoli on Saturday as Thiago Motta's side dropped more points after their goalless home stalemate against AS Roma before the international break.
Inter and AC Milan on Friday rejected the project to modernise and restructure the iconic San Siro stadium which they share, city mayor Giuseppe Sala announced.
Victor Osimhen has been sidelined by Napoli after the team he fired to Serie A glory just a over year ago left him both off their squad list for the 2024/25 campaign and potentially in season-long limbo.
Belgium striker Lukaku completed a permanent move to Napoli from Chelsea on Thursday, ending a long period of limbo with the Blues.
Inter Milan thrashed Atalanta 4-0 on Friday to move provisionally top of Serie A, while Torino snatched a late 1-0 win at Venezia to continue their positive start to the campaign.
The futures of Napoli striker Victor Osimhen and England international Ivan Toney are set to dominate the final day of the European transfer window on Friday as Chelsea continue their frenzied pursuit of new signings.
Napoli have signed Romelu Lukaku from Chelsea, the Serie A club announced on Thursday, ending the Belgium striker's extended period in limbo with the Blues.
Poland goalkeeper Wojciech Szczesny on Tuesday announced he was retiring from football at the age of 34 less than two weeks after the end of his contract with Juventus.
Serie A title fever is sweeping Naples as the football-mad city hopes that rampant Napoli will end more than three decades of waiting to be crowned kings of Italy.
Milan prosecutors are looking into last year's 1.2 billion euro ($1.3 billion) sale of AC Milan to U.S. private equity fund RedBird Capital from U.S. fund Elliott, a judicial source said on Thursday.
Lazio shot into Serie A's Champions League places on Tuesday after hammering AC Milan 4-0 to leave the champions' title defence hanging by a thread.
Premier League leaders Arsenal signed Poland defender Jakub Kiwior from Italian side Spezia in a deal worth a reported £12 million ($27 million) on Monday.
Napoli must seize their "unprecedented opportunity" to win the Scudetto after reaching 50 points at the halfway mark of the Serie A season by beating Salernitana, said Luciano Spalletti.
Juventus manager Massimiliano Allegri has urged his team to "do their duty" on the pitch after the Serie A side were deducted 15 points by an Italian soccer court on Friday, leaving them marooned in mid-table.
Barcelona coach Xavi Hernandez said Saturday that he is in "a state of shock" after Dani Alves's arrest on sexual assault allegations.
Juventus JUVE.MI have been deducted 15 points for the current season by an Italian soccer court investigating the club's transfer dealings, leaving the country's most successful team marooned in mid-table.
Davide Nicola has been brought back as coach of Salernitana just two days after being sacked, the Serie A club confirmed to AFP on Wednesday.
Outgoing Juventus Chairman Andrea Agnelli said on Wednesday that he would also quit his roles on the boards of carmaker Stellantis STLA.MI and Exor <EXOR.AS>, the Agnelli family's holding company.