Slavia Praha took a significant step toward the UEFA Champions League group stage with a 1–0 away victory over Union St. Gilloise in the first leg of the third qualifying round on Tuesday, 13 August 2024. The match kicked off at 18:30 UTC, and the single goal, scored in the first half, gave the Czech side a crucial advantage to take back to Prague for the return fixture.

For Union St. Gilloise, the defeat at home left them with a mountain to climb in the second leg. The Belgian side, wh...