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TransferFeed valuation based on market analysis.
Recent reports from May 2026 consistently state Brighton's valuation is approximately £35 million (explicitly converted to €40 million in one report), amid interest from Tottenham, Borussia Dortmund, and Atlético Madrid. In the same period, Atlético was reportedly considering a move for around €30 million. A year prior, in June 2025, Napoli was reported to have proposed €30 million, while Brighton's asking price was cited in various reports as £30 million (approx. €35 million) and €25 million. The player's completed transfer from Celtic to Brighton in August 2024 was for €29.5 million. Earlier, in January 2024, a bid of around €24 million from Atlético Madrid was reportedly rejected by Celtic. A loan fee of €2 million was also reported for his move to Marseille in September 2025.
Our valuation for Matthew O'Riley is anchored by Brighton's consistent reported asking price of approximately €40 million (£35 million) in May 2026 and their initial €29.5 million investment in August 2024. Despite a challenging season leading to a loan spell, strong interest from multiple clubs like Tottenham, Borussia Dortmund, and Atlético Madrid supports a valuation close to or above the original purchase price. Reported interest and potential bids around the €30 million mark suggest a final fee will likely be a compromise between the high asking price and the initial investment.
Rumored destinations and interested clubs.
Kobbie Mainoo is the closest match according to our proprietary analysis of transfer rumours and club connections.
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