Initially, he will be registered with Atletico B, where he will play under the guidance of coach Fernando Torres.
De Luis has experience playing for Real Madrid's Castilla team, as well as on loan with Aviles and Xerez. He is also a regular member of the Spain U21 national team.
De Luis expressed his excitement about the new challenge, saying, "I am very happy to take on this challenge. I am eager to start and contribute to the team's success. I hope we can have a positive year and achieve great things together."