In the 12th round of the 2025/26 Serie A season, AC Milan, playing at the San Siro Stadium, defeated Inter Milan 1-0 after Pulisic scored.

Four minutes into the match, Inter Milan launched an attack. Dimarco received the ball on the left wing and chipped it into the penalty area, where Thuram headed it from close range, but the shot was saved by AC Milan goalkeeper Maignan. In the 7th minute, AC Milan defender Gabbia suffered a head injury during a challenge for the ball with Lautaro, but continued playing after receiving treatment.

In the 15th minute, Dimarco's corner kick was cleared, and Petar Susic, positioned at the edge of the penalty area, controlled the ball with his chest and unleashed a long-range shot, but the ball went over the post. In the 16th minute, AC Milan attempted a counter-attack, with Barthezgi receiving a cross from his teammate and firing a low shot, but the ball went wide of the goal.

In the 27th minute, Inter Milan took another corner kick, and Acerbi's header hit the post. In the 37th minute, Barella crossed the ball, Thuram headed it across the box, and Lautaro took a shot, but AC Milan goalkeeper Maignan dived to block it.

In the 40th minute, Batsaghi passed the ball from the left wing, and Saelemaekers received the ball and took a shot, but the ball went directly over the goal. In the 44th minute, Pulisic received the ball and broke through to the edge of the penalty area before taking a long-range shot, but the ball went wide of the post.

In the 50th minute of the second half, Barella received the ball in the penalty area and took a shot, but it was blocked by an opposing player. In the 51st minute, Inter Milan created another attacking opportunity. Thuram received a through pass from his teammate and curled a shot over the defense, but the angle of the shot was too straight and the ball was easily caught by AC Milan goalkeeper Maignan.

In the 54th minute, Çalhanoğlu lost possession, and Saelemaekers received a pass from Youssef Fofana and fired a long-range shot from the edge of the penalty area, but it was blocked by Inter Milan goalkeeper Sommer. Pulisic immediately followed up and scored, giving AC Milan a 1-0 lead.

In the 65th minute, Inter Milan substituted Bony for Lautaro. In the 68th minute, AC Milan launched an attack, and Youssef Fofana received the ball and fired a low shot, but the ball was intercepted by Inter Milan goalkeeper Sommer.

In the 71st minute, Thuram was fouled by Strashinja while passing the ball, and after VAR intervention, the referee awarded Inter Milan a penalty. Çalhanoğlu then took the penalty, but it was saved by AC Milan goalkeeper Maignan.

In the 81st minute, Inter Milan launched a counter-attack from a corner kick. Acerbi headed the ball across, but Akanji's shot while falling to the ground posed no threat. In the 89th minute, Bony received the ball at the edge of the penalty area and took a long-range shot, but his effort went high.

AC Milan ultimately defeated their city rivals Inter Milan 1-0. With this victory, AC Milan now sits in second place in the standings with 25 points, while Inter Milan remains in fourth place with 24 points.