He is on the books of Olympic Charleroi and wears shirt number 38. His main role on the pitch is Midfield. His stronger foot is Right. His estimated market valuation currently stands at 200K €.

His latest transfer saw him join RAAL La Louvière from Farciennes via Loan on 2026-06-30.

Over 20 appearances in the Belgian Challenger Pro League 2025-2026, Thierno Diallo contributed 0 goals and 0 assists, completed 1 key passes from 227 total passes, and posted a passing accuracy of 9.1.