PSV had agreed to a deal worth €4 million for 80 per cent of Mendy’s transfer rights. However, the move was halted by Dutch work permit regulations, which require non-EU players to have a certain level of international experience. As Mendy has never played for his national team and has limited appearances in the top flight, he did not meet the criteria, leading to the deal's collapse.
Though this deal failed, it created a significant financial benchmark for Betis. The Spanish club, which initially bought Mendy from Paris FC for around €900,000, wants to monetise their asset for a price closer to the PSV offer. Vallecano’s current offer of €2.5m for 50-60% of Nobel's rights falls significantly short of that valuation. This financial gap has given an opportunity for other clubs, including Rangers, Club Brugge and Basel to enter the race.