According to Fussball News, Chelsea are closely monitoring the development of Spain U21 international Jon Martin. The report also states that Chelsea value his tactical flexibility and his qualities in build-up play. Interested clubs are currently in the scouting and evaluation phase, and initial exploratory talks with the player’s representatives could take place ahead of the winter transfer window. Jon Martin has a long-term contract with Real Sociedad that runs until June 2032, which allows them to demand €50million (£43m) to sell.

It is reported that Chelsea and Arsenal are among the clubs interested in Jon Martin, a 20-year-old Real Sociedad centre-back, and that talks could potentially happen soon. Liverpool and Real Madrid have also joined the two Premier League clubs in monitoring the Spain U21 international, who has 4 caps. Martin joined Real Sociedad in July 2024 and his contract runs until 2032. Transfermarkt estimates his current market value is €25.00m.