Oumar Sako is a 30-year-old professional football player from NIG. He currently plays for FK Rostov, wearing the number 3 shirt. At the international level, he represents Niger. He plays primarily as a Defender. He stands at 191cm tall and weighs 79kg. His current market value is estimated at 2.5M €.

His most recent move was a Free from Arda to FK Rostov on 2024-07-01. The reported fee was 0.35M €.

Throughout the Russian Premier League 2025-2026, Oumar Sako featured in 14 matches, averaging 1.3 tackles, 0.9 interceptions, and 4 clearances per game, while blocking 0 shots per game.