Oso

In July 2026, reports indicated intense transfer talks. An offer of €6.5 million from the Marinakis Group for Olympiacos was reported, with Sevilla demanding €10 million plus add-ons; a verbal agreement was later mentioned at around €6 million. Simultaneously, Fiorentina reportedly offered €10 million, with Sevilla asking for at least €15 million, and a potential agreement was mooted between €12-15 million. Nottingham Forest was said to have neared a €20 million release clause. Earlier, in May 2026, Strasbourg's interest was valued at an estimated €5 million. Transfermarkt values fluctuated from €2 million in March 2026 to €5 million in May and €10 million in July 2026.

Our valuation is driven by multiple active transfer negotiations reported in July 2026 for Joaquín Martínez Gauna. The range is anchored by Fiorentina's reported €10 million offer and Sevilla's €15 million asking price, with reports suggesting a deal could be reached between €12-13 million. The player's contract situation, with one year remaining, and a reported €20 million release clause also inform this estimate, balancing Sevilla's need to sell against their valuation.