Marca reports that there is growing interest from major clubs in Jon Martín due to his impressive performances. His performance has led to Jokin Aperribay calling him for a third contract renewal in a little over two years. The possibility of a future multi-million offer is mentioned, particularly if his release clause remains at 60 million. The interested clubs are not specified.

The projection of 19-year-old Spanish centre-back Jon Martín has attracted the interest of several European clubs, including Real Madrid, which is now more actively studying signing him in future transfer windows. Other European clubs are monitoring the Real Sociedad central defender. In the current 2025/2026 LaLiga season, he has made 19 appearances and scored one goal. The Spain U21 international has earned 3 caps. Martín joined Real Sociedad in July 2024 and has a contract until 2031. His contract reportedly includes a €50 million release clause as of March 2026. His current Transfermarkt market value is €20.00m.