He currently plays for Olympic Charleroi, wearing the number 38 shirt. He plays primarily as a Midfield. His preferred foot is Right. His current market value is estimated at 200K €.

His most recent move was a Loan from Farciennes to RAAL La Louvière on 2026-06-29.

Across 2 appearances in the Belgian Cup 2025-2026, Thierno Diallo registered 0 goals and 0 assists, while completing 0 key passes out of 0 total passes with a passing accuracy of -.