Nigeria's Rivers United suffered a 1-0 defeat to Mozambique's Black Bulls in the first leg of their CAF Champions League second-round tie in Maputo.
The closely contested match saw the Nigerian side struggle to convert their chances, with the hosts capitalising on a defensive lapse to snatch a narrow victory.
Despite the loss, Rivers United coach Evans Ogunbosun remained optimistic about his team's chances in the return leg in Port Harcourt.