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.
Inter rebounded from their first loss of the season midweek against Sassuolo thanks to a sensational second-half display from Martinez.
Portugal winger Leao netted his third goal in as many league matches in the eighth minute at a sodden San Siro to move Milan up to second on 12 points from five games
Stefano Pioli insisted on Monday that AC Milan have turned their attentions to the Champions League opener with Newcastle United after the local derby humiliation at the weekend.
Belgium forward Lukaku rolled in Roma's sixth in the 82nd minute of a dominating performance in which talisman Paulo Dybala also got off the mark for the season with a brace.
Inter Milan laid down an early title marker on Saturday by handing out a 5-1 derby hammering to AC Milan and going it alone at the Serie A summit, while champions Napoli were held 2-2 at promoted Genoa.
Italy's Milan giants face off in Saturday's local derby which pits Serie A's form teams against one another in a match which will give an early indication of their title credentials..
Leonardo Bonucci has confirmed that he is taking legal action against Juventus, claiming that the Serie A club has not told the truth about their treatment of him after he was frozen out and eventually sold over the summer.
Inter Milan coach Simone Inzaghi has signed a new contract that will keep him at the club until 2025, the Serie A side said on Tuesday.
European heavyweights will be on their toes to execute eleventh-hour acquisitions as the summer transfer window for Europe's top five leagues is set to close tonight, from 10pm to 4am (Bangladesh Standard Time).
Right wing back Denzel Dumfries ran onto a cunning through ball by Marcus Thuram after 21 minutes and placed a low cross-shot past goalie Boris Radunovic