Martín Aguirregabiria joined Real Zaragoza on the last day of the transfer market, which was a frenetic closure for the club. Despite training alone during the summer, he is physically prepared to contribute to the team, having been advised by professionals during his solo training. The 29-year-old lateral was presented along with other new signings, including Pablo Insua, Kenan Kodro, Paul Akouokou, and Esteban Andrada, by the club's director of sports, Txema Indias. Aguirregabiria expressed his readiness to integrate into the team, which competes in LaLiga Hypermotion (Segunda División).