Vasilije Kostov

In May 2026, reports indicated Borussia Dortmund was prepared to bid as high as €25 million. In April 2026, CIES reportedly valued the player at €23.32 million. In March 2026, Crvena Zvezda's director confirmed offers exceeding €20 million, and it was reported that the club rejected an offer of around €20 million from Arsenal. In January 2026, an offer of €20 million was reportedly made, while his Transfermarkt value was listed as €10 million. In September 2025, it was speculated his transfer could bring in at least €20 million.

Our valuation is driven by multiple consistent reports from early 2026. The floor is established by a rejected offer of €20 million from Arsenal and a club director's confirmation of bids exceeding that amount. The ceiling is set by Borussia Dortmund's reported willingness to pay up to €25 million for Vasilije Kostov, creating a well-defined and credible range.