Valentin Castellanos

The available data is dominated by the player's definitive transfer from Lazio to West Ham in January 2026, with the fee consistently reported as €29-30 million. Just prior to this, a reported offer of €25 million from Flamengo was rejected. Throughout late 2025, Lazio's asking price was frequently cited in the €30-40 million range, with one club president mentioning a €40 million offer in June 2025. Earlier reported bids included €22.5 million from Flamengo (December 2025) and €15 million from the City Group (July 2024). His transfer to Lazio from New York City in July 2023 was for a reported €15 million. Transfermarkt's valuation was noted as €25 million in late 2025 and €28 million in May 2026.

Our valuation is driven by the completed transfer of Valentin Castellanos to West Ham United in January 2026. The fee is consistently reported across multiple sources and confirmed in the historical data at €29-30 million. This figure aligns perfectly with Lazio's reported asking price of €30-40 million in the preceding months and their rejection of lower offers, establishing a clear market value.