Wilson Isidor

In January 2026, reports indicated Beşiktaş was prepared to offer €15 million for the player, while his market value was concurrently listed at €18 million by Transfermarkt. A few months prior, in September 2025, Sunderland's asking price was reportedly around €41 million (converted from £35 million), with his market value at that time listed as €12 million. The player's most recent completed transfer was from Zenit St. Petersburg to Sunderland in February 2025 for a fee of €6.0 million.

Our valuation for Wilson Isidor is driven by a concrete reported offer of €15 million from Beşiktaş and a current market value of €18 million. While Sunderland's asking price was reported at a much higher ~€41 million in late 2025, the current offer and market data suggest a more moderate figure is likely. The interest from multiple Premier League clubs supports a valuation above the initial bid, but the player's recent reduced role at the club tempers the higher-end expectations.