Mezian Mesloub, a 16-year-old midfielder from Lens, made his Champions League debut in the match against Slavia Prague. He entered the second half of the match and set up Florian Thauvin's goal, which contributed to his team's 3-2 victory. This achievement makes him one of the youngest players to participate in a Champions League goal. According to verified facts, Mezian Mesloub became the third-youngest player from a French club to feature in the competition, behind only Rayan Cherki and Warren Zaïre-Emery. Additionally, he joined Lamine Yamal as one of two players to have provided an assist in the Champions League before turning 17.