Gimnasia is interested in re-signing 38-year-old Argentinian defender Milton Casco, who came through their youth system and is currently with Atlético Nacional. The club had previously attempted to sign him at the end of last year after his ten seasons with River ended, but negotiations were unsuccessful, and he moved to the Medellín-based team. A potential motivation for his return is his son, Gianluca, who is a key player in Gimnasia's youth academy. The main obstacle to a transfer is that the club has no available squad spots and must first transfer a player abroad to create a space. If they cannot sign him in the current transfer window, Gimnasia intends to try again in December when Casco's contract with the Colombian club expires. Casco has 3 caps for Argentina, and his current market value is €75k, according to Transfermarkt. In the 2025/2026 domestic league season, he has made 19 appearances, scoring 2 goals and providing 2 assists.