Marseille faced a tough challenge against Arsenal and ended up losing 2-1, despite a strong first-half performance that resulted in a 0-0 score at halftime.
The dynamics shifted rapidly in the second half, especially with Walcott opening the scoring after an error by Morel. Aaron Ramsey followed suit, adding a second goal a few minutes later.
Ghanaian Jordan Ayew, who had just entered the game, managed to reduce the score from the penalty spot towards the end of the match, but it had minimal impact on the overall outcome.
Unfortunately for Marseille, they experienced a defeat right at the start of their Champions League campaign. In the other group match, Napoli secured a 2-1 victory over Dortmund.