Francisco Sierralta

In September 2026, reports indicated the player was loaned from Auxerre to Piast Gliwice with an unspecified option to buy. The most recent completed transfer fee was from July 2025, when Auxerre reportedly paid Watford €1.8 million. Around that time, in June 2025, some reports had suggested the fee would be approximately €2 million.

Our valuation for Francisco Sierralta is anchored by his confirmed €1.8 million transfer to Auxerre in July 2025. His subsequent injury, limited playing time, and recent loan move to the Polish league in September 2026 suggest a slight decrease in his market value, leading to our current, more conservative estimate.