Rennes opened the 2025 Ligue 1 season with a hard-fought 1–0 victory over Marseille at Roazhon Park on Friday, 15 August 2025. The match, which kicked off at 18:45 UTC on Matchday 1, remained scoreless at the break before Rennes found the decisive goal in the second half. Referee J. Pignard officiated the contest, which marked the first meeting of the campaign between two clubs with a long-standing rivalry in French football.

For Rennes, the three points provided an ideal start to their domesti...