The fourth round of the 2025/26 UEFA Champions League featured a key match, with Arsenal, playing away, defeating Slavia Prague 3-0 thanks to a penalty from Saka and a brace from Merino.

Two minutes into the match, Arsenal's attack was cleared, and Gabriel, outside the penalty area, unleashed a volley, but the ball went wide. In the 18th minute, Gabriel appeared to be injured, but continued playing after receiving treatment. In the 20th minute, Saka received the ball and fired a long-range shot from outside the penalty area, but Slavia Prague goalkeeper Markovic made a diving save.

In the 26th minute, Rice took a corner kick, and Trossard's volley was saved by Slavia Prague goalkeeper Markovic. In the 30th minute, Slavia Prague midfielder Provod made contact with the ball with his hand while clearing the ball in the penalty area. After VAR intervention, the referee awarded Arsenal a penalty. Saka then converted the penalty, giving Arsenal a 1-0 lead.

In the 37th minute, Slavia Prague attempted a counter-attack. Yusofa Sanjan was tripped by Merino while dribbling the ball, and the referee showed Merino a yellow card.

At the start of the second half, Trossard dribbled into the left side of the penalty area and chipped the ball to Merino, who tapped it in at the near post, giving Arsenal a 2-0 lead over Slavia Prague. In the 63rd minute, Rice played a long pass from the center circle, and Saka received the ball and fired a low shot from inside the penalty area, but the ball was saved by Slavia Prague goalkeeper Markovic.

In the 68th minute, Rice chipped the ball to Merino, who, after dealing with Slavia Prague goalkeeper Markovic, headed the ball into the empty net, extending Arsenal's lead to 3-0. In the 72nd minute, Arsenal substituted Lewis Skelly and Dawman for Incapie and Timber, with the 15-year-old Dawman becoming the youngest player to ever appear in a Champions League match.

In the 85th minute, Slavia Prague launched an attack. Provod was kicked in the foot by Ben White when he took a shot, but after VAR intervention, the referee ruled that there was no foul.

Arsenal ultimately defeated Slavia Prague 3-0 away from home, securing their fourth consecutive victory.