Santiago Castro

Santiago Castro's transfer history includes a completed move from Vélez Sarsfield to Bologna in January 2024 for a reported €12 million. Early rumours in late 2024 and early 2025 placed his value between €25 million and €35 million. By mid-2025, and consistently through early 2026, Bologna's asking price was widely reported to be a minimum of €40 million, a figure mentioned in connection with interest from Milan, Arsenal, and Inter. Most recently, in April 2026, reports linked to Chelsea and Manchester United suggested a potential fee could reach as high as €70 million. His Transfermarkt valuation was frequently cited at €35 million during this period.

Our valuation is driven by the numerous and consistent reports from late 2025 through April 2026 stating Bologna's asking price for Santiago Castro is €40 million. This figure is supported by his recent long-term contract extension until 2030 and widespread interest from top clubs. The upper end of our range acknowledges more speculative reports of a potential €70 million fee amid interest from high-spending Premier League clubs, while the lower end is anchored by his €35 million Transfermarkt valuation.