Kacper Potulski

In March 2026, reports connected to strong interest from several top Bundesliga clubs like Borussia Dortmund, Bayer Leverkusen, and Bayern Munich unofficially stated that a potential transfer fee for the defender would be between €15 million and €25 million. No other specific valuations or fees are mentioned in the available data.

Our valuation is driven by multiple consistent reports from March 2026 suggesting an unofficial transfer fee for Kacper Potulski in the range of €15-25 million. This figure is supported by widespread interest from numerous high-profile clubs across Germany, England, and Italy, including Borussia Dortmund who reportedly see him as a primary target. FSV Mainz 05's strong negotiating position, thanks to a long-term contract until 2028 with no reported release clause, further solidifies this valuation.