Coulibaly has transferred to Brest. This was one of the four deals completed by Borussia Dortmund's sporting director Sebastian Kehl at the end of the transfer window.

Soumaila Coulibaly was loaned to Brest after an agreement with Borussia Dortmund.

Soumaïla Coulibaly, a 20-year-old Malian defender, has been loaned by Borussia Dortmund to Brest for 12 months to gain continuity and adequate playing time in Ligue 1. Coulibaly, who was acquired from Antwerp, had previously played for Paris Saint-Germain and spent the last season on loan at Royal Antwerp in Belgium, contributing to their third-place finish in the regular season and participating in all six of their Champions League group stage matches.

Soumaïla Coulibaly, a central defender trained at PSG and loaned to Antwerp last season, is loaned to Brest by Borussia Dortmund for the upcoming season. The French club reached an agreement with Dortmund to bring the 20-year-old defender, as announced by Le Parisien and confirmed by L'Équipe. Coulibaly played 36 matches with the Belgian club Antwerp last season.