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.
Argentina international forward Paulo Dybala has agreed a deal in principle to sign for Serie A side AS Roma on a free transfer following his departure from Juventus, a source close to the club told Reuters on Monday
French midfielder Paul Pogba conceded the volume of different coaches he played under at Manchester United hindered his chances of success in England, while he also insisted he is pleased to be "home" at Juventus.
Swedish veteran Zlatan Ibrahimovic said Thursday he endured six months of sleepless nights due to a painful knee because he was determined to fulfil his promise to AC Milan of delivering their first Serie A crown in 11 years.
AC Milan clinched their first Italian Serie A title in 11 years after earning a 3-0 final-day victory at Sassuolo on Sunday, with a double from Olivier Giroud and one from Franck Kessie sealing the Scudetto in style.
Giorgio Chiellini has left the field for the final time in a Juventus jersey and, as is tradition, he did it while bleeding profusely.
Eusebio Di Francesco has become the first Serie A coaching casualty this season after he parted ways with Sampdoria on Monday following six defeats in their opening seven games.
Serie A leaders Inter Milan defeated city rivals AC Milan 2-0 at the San Siro stadium on Saturday to maintain their 100% start to the campaign.
Inter Milan went top of Serie A on Saturday after Stefano Sensi's header sealed a 1-0 win over 10 man Udinese at San Siro to continue their perfect start.
Forward Romelu Lukaku scored on his debut for Inter Milan as they made a flying start under new coach Antonio Conte with a 4-0 win over promoted Lecce in Serie A on Monday.
Napoli, runners-up in three of the last four seasons, hit back from conceding a contentious early penalty to win 4-3 at new-look Fiorentina in a hugely entertaining start to their Serie A campaign on Saturday.