Despite reaching an agreement with Arsenal, Zubimendi is having second thoughts about joining the English club. The reason behind this change of heart is the growing interest from Real Madrid, who have expressed their intention to sign him this summer.

Real Madrid's coach, Xabi Alonso, has a personal connection with Zubimendi, having previously worked together at Real Sociedad B. This relationship may play a significant role in Zubimendi's decision, as he is reportedly open to the idea of reuniting with Alonso at Real Madrid.

Arsenal had already agreed to pay Zubimendi's £51 million buyout clause and had settled on personal terms worth €8 million per year. However, it remains to be seen whether the player will ultimately choose to join the English club or return to Real Madrid.