Charlton suffered a 1–3 defeat at home to Portsmouth on Tuesday, 17 February 2026, in a Championship Matchday 19 fixture that kicked off at 19:45 UTC. Referee L. Doughty was the man in the middle at The Valley, and the visitors held a commanding 0–2 lead at half-time. The result handed Portsmouth a crucial three points on the road, while Charlton were left to rue a first-half deficit they could not overturn in the second period.

At that stage of the 2025 Championship season, the outcome carried...