The 20-year-old center ack will work with the Catalans' B team for the coming season, after the Blaugrana missed out on young Colombian Davinson Sanchez
Barcelona has signed Brazilian youngster Marlon Santos from Fluminense on a one-year loan deal, with an option to make the move permanent.
The center back, 20, has already passed his medical and will start pre-season with Barcelona B under coach Gerard Lopez.
The Catalans were keen to add a young defender to their squad ahead of the 2016-17 campaign and had previously been linked with Davinson Sanchez.
However, the Colombian defender opted against moving to Camp Nou when told he would start with their B team and joined Ajax instead.