The Olympique de Marseille starts its Ligue 1 season 2025/2026 with a trip to Rennes, a particularly expected opening game. This match also marks the return of two iconic players for the club, Rongier and Merlin, who join the team after their mercato. Coach Roberto De Zerbi prepares a team composition that could still evolve with the arrival of new recruits before the end of the transfer period. The Marseilles team arrives at this first game with undefeated preparation, facing a Rennes team in full reconstruction under the direction of Habib Beyeet.

The likely composition of OM for this opening match seems to remain true to that used in the prep games. In defense, we expect to see Egan-Riley forming the central hinge with Balerdi, with Garcia evolving on the left side. In the middle of the field, Gomes should be in charge alongside the usual Højbjerg and Rabiot. In attack, the Greenwood and Gouiri association, supplemented by Rowe, should be highlighted. The absence of Peaceão, wounded, could lead the bench to Weah, arrived late. Medina is suspended for this first game, which explains the tenure of the young Egan-Riley.

On the Rennes side, the new recruits Rongier, Merlin and Frankowski should be aligned. OM remains attentive to the transfer market, with leads for a central defender and a left side that could potentially change the composition of the team before the end of the mercato. De Zerbi, however, should retain a team that is relatively similar to that used in pre-competition games, pending assessment of new recruits and management of absences due to injuries and suspensions.