Real Sociedad has been following River Plate defender Lautaro Rivero. Contacts began to be established two months ago, according to AS. River Plate has not yet decided whether Rivero will be allowed to leave and will only let him go for a strong offer. The club is exploring options such as retaining a percentage of future sales and capital gains. Rivero has a release clause of 100 million.

Real Sociedad is closely following Lautaro Rivero, a 22-year-old Argentinian defender from River Plate. The club has reportedly made a formal offer to acquire him, although this is not fully confirmed in Donostia. Rivero is a left-footed player and is considered to fit the profile for a central defender sought by the coaching staff led by Pellegrino Matarazzo. Real Sociedad's interest is also due to Rivero's recent call-up to the Argentina national team by Lionel Scaloni and his defensive versatility, as he can also play as a left-back. Rivero is currently one of several options on a list held by the club's sporting director, Erik Bretos. The defender joined River Plate in January 2024, has a contract until the end of 2029, and has one cap for his country. He made 14 appearances and scored one goal in the 2025/2026 Torneo Apertura. Several Serie A clubs, including Roma, Inter, and Lazio, have also been linked with the player. His market value is estimated by Transfermarkt to be €7.00m. According to reports from May 2026, Roma is considering an offer between €15 million and €20 million. Another report from May 2026 suggested a purchase price of around €10 million. It was previously reported in February 2026 that River Plate expected a sale for more than €30 million.