The fourth round of the 2025/26 UEFA Champions League saw German powerhouse Bayern Munich defeat defending champions Paris Saint-Germain 2-1 at the Parc des Princes after a brace from Diaz.

Four minutes into the match, Gnabry passed the ball to Olise, who entered the penalty area and fired a shot, but it was saved by Paris Saint-Germain goalkeeper Chevalier. Diaz then received the ball, adjusted his position, and fired a follow-up shot into the net, giving Bayern Munich a dream start of 1-0. In the 15th minute, Fabian Ruiz received a diagonal pass from his teammate at the edge of the penalty area and fired a long-range shot, but the ball deflected off a teammate and went wide.

In the 22nd minute, Paris Saint-Germain attempted a counter-attack. Barcora delivered a cross, Fabian Ruiz kicked the ball into the box, and Dembele chested it into the net. However, after VAR intervention, it was determined that Dembele was offside, and the goal was disallowed. In the 30th minute, Diaz crossed from the edge of the penalty area, and Gnabry took a long-range shot, but the ball hit the post.

In the 32nd minute, Marquinhos made a mistake, Diaz regained possession, entered the penalty area, and slotted the ball into the empty net, extending Bayern Munich's lead over Paris Saint-Germain to 2-0. In the 45th minute, Stanisic received the ball and shot from the penalty area, but the goal was disallowed for offside.

In first-half stoppage time, Diaz tackled Hakimi while contesting for the ball. After VAR intervention, the referee showed Diaz a red card, forcing Bayern Munich to continue with 10 men. Hakimi, who was injured, was subsequently substituted by Mayulu.

A minute later, Olise chipped the ball to Kane in the penalty area, but Kane's shot was saved by Paris Saint-Germain goalkeeper Chevalier.

In the 49th minute of the second half, Lee Kang-in took a corner kick, and Kvalacchria rose to head the ball, but it went over the goal. In the 57th minute, Mayulu received a pass from Barkola and shot from the edge of the penalty area, but the ball was cleared by an opposing player. In the 65th minute, Vitinha played a through ball, and Kvalacchria slid in from the ground in the penalty area, but the ball was caught by Bayern Munich goalkeeper Neuer.

In the 68th minute, Paris Saint-Germain launched another counter-attack. Vitinha met the ball and unleashed a long-range shot, which Bayern Munich goalkeeper Neuer immediately saved. In the 74th minute, Lee Kang-in chipped a pass into the penalty area, and João Neves volleyed it into the net, helping Paris Saint-Germain pull one back to 1-2.

In the 79th minute, Marquinhos orchestrated an attack, and Gonzalo Ramos received the pass and unleashed a long-range shot, but the ball went over the post. In the 86th minute, Vitinha received a pass from Lee Kang-in and took a long-range shot from the edge of the penalty area, but it was saved by Bayern Munich goalkeeper Neuer.

In the second half stoppage time, Lee Kang-in delivered a cross, but Marquinhos' header went wide.

Bayern Munich ultimately defeated Paris Saint-Germain 2-1 away from home, successfully maintaining their winning streak.