Inter Milan achieved a historic milestone in the 2023–24 season by clinching their 20th Serie A title on 22 April 2024, defeating city rivals AC Milan in the Derby della Madonnina to earn the coveted "second star" badge. However, their campaign was mixed in other competitions: they were knocked out of the Coppa Italia in the round of 16 by Bologna on 20 December, and their UEFA Champions League journey ended on 13 March after a 2–2 aggregate draw against Atlético Madrid, who advanced via a penalty shootout. They did find success in the Supercoppa Italiana, beating Lazio 3–0 and Napoli 1–0 to win their third consecutive title on 22 January. The season was marked by an extensive squad overhaul, with key departures including longtime goalkeeper Samir Handanović, midfielder Marcelo Brozović (transferred to Al Nassr), and André Onana (who joined Manchester United), while new signings like striker Marcus Thuram, midfielder Davide Frattesi, and goalkeeper Yann Sommer arrived. After the leadership change, Lautaro Martínez was officially appointed club captain on 26 July 2023, and key players like Alessandro Bastoni and Hakan Çalhanoğlu extended their contracts, solidifying a transformative and triumphant year for the Nerazzurri.