Alejandro Balde is the undisputed defender of Barcelona, and after a somewhat disappointing start to the season by the standards of his teammates, he has recovered in the last few games. However, his tenure for the 2025-26 season (and beyond) is far from certain.
Gerard Martin currently holds that position, although he was less than convincing when called upon by Hansi Flick. Another internal option is Alex Valle, who will return to Barcelona at the end of the season.
Valle is currently on loan at Celtic, where he has enjoyed regular game time in recent weeks. Ace for SportBarcelona officials have discovered a lot during this period, as he is a serious option to stay in the first team next season.
Regular game time in a team like Celtic will be very good for Valle's development. Barcelona they are aware of this, and hope that he will continue to improve for the rest of the season.