Ajax is negotiating with River Plate for Mauro Arambarri as the club seeks an additional midfielder. Ajax has submitted a proposal to loan the 30-year-old Uruguayan with an option to buy. It is reported that River Plate is open to a transfer but would prefer a deal that includes an obligation to buy or is a permanent sale. The two clubs are said to be working to finalize the transfer before the transfer window closes in the Netherlands. Arambarri, who also holds a Spanish passport, has a contract with River Plate until the end of 2028. He joined from Getafe earlier this summer for a fee reported to be six million euros. His estimated market value is eight million euros, and it has been reported that Spanish coach Míchel Sánchez has already been in contact with the player via a phone call. The midfielder has 12 caps for Uruguay. In the 2025/2026 LaLiga season, he made 37 appearances, scoring 6 goals and providing 2 assists.