1. FC Heidenheim 1846 suffered a narrow 1–0 defeat against Swiss side Lugano in an International Club Friendly held on 11 July 2026. The match, played at Heidenheim's Voith-Arena, saw Lugano strike early in the first half to claim the only goal of the contest. Despite dominating possession for long spells, the Bundesliga side could not find an equaliser, with Lugano’s defence holding firm. Heidenheim fielded a mix of first‑team regulars and fringe players as they continued their pre‑season preparations, while Lugano’s sharp finishing highlighted the difference on the night.