Marc Guiu

In August 2026, reports indicated a transfer to RB Leipzig was agreed for a fee under €20 million. During the same period, Napoli was reportedly in negotiations, offering around €15-€16 million, while Chelsea's asking price was cited between €25 million and €30 million by various sources. One report mentioned a concrete offer of €30 million had been received. Earlier, in July 2026, Bologna was linked with a valuation of €12-€15 million, and in May 2026, Chelsea's asking price was reported at approximately €26 million (£22m). A Transfermarkt valuation from July 2025 placed him at €8 million. He was originally signed by Chelsea from Barcelona in July 2024 for a €6 million release clause fee.

Our valuation for Marc Guiu is shaped by the consistent transfer negotiations in August 2026. Reports indicated Napoli consistently offered around €15 million, while Chelsea's asking price was firmly in the €25-€30 million range. The most decisive factor is the reported final agreement with RB Leipzig for a fee 'under 20 million euros', which anchors our estimate and defines the upper bound of the plausible range.