Voetbalprimeur.nl reports that Ajax has announced the arrival of Gerónimo Spina. The 21-year-old defender joins from Atlético Madrid and has signed a contract until the summer of 2028 at the Johan Cruijff ArenA. The agreement includes an option for an additional season. Spina, who had already bid farewell to Atlético Madrid on social media last weekend, has now been officially presented at Ajax. He will join the squad of Jong Ajax. Ajax pays half a million euros for Spina, according to reports.

Gerónimo Spina announced his departure from Atlético Madrid on Instagram. Voetbal International reported that Ajax and Atlético Madrid have reached an agreement for Spina. Technical director Jordi Cruijff is reportedly paying half a million for the Argentinian, who will first join Jong Ajax.

Spanish journalist Jorge San Cristóbal reported that Ajax and Atlético Madrid have reached an agreement over Gerónimo Spina. Spina will join Jong Ajax. The same journalist previously reported that Ajax had interest in Spina, and an agreement is now said to exist. The Argentine defender was bought by Atlético Madrid three years ago and mainly played for Atlético's B team, having not made his debut for the first team. His contract was valid until mid-2027, but Ajax will now acquire him.

Gerónimo Spina is a 21-year-old Argentine central defender who also holds Italian nationality. It is reported that he is in negotiations with Ajax over a move intended to strengthen Jong Ajax. The two parties are in talks. Spina, who has a contract with Atlético Madrid until mid-2027, joined the club from Estudiantes in 2023 and has made 28 appearances in the Primera Federación - Gr. II for the B-team, recording no goals or assists, without debuting for the senior squad. The defender has one cap for the Argentina U20 team. Previously, FC Barcelona had been interested in the defender for a significant period, but a transfer did not happen during the 2025 window. According to Transfermarkt, his current market value is €200k.