Astralaga has been putting up impressive performances for the youth team.
The 18-year-old tied Barcelona from fit Club in 2018 and has been budding steadily in the ranks.
Barcelona are looking to tidy one of their private to interpret over from Ter Stegen.
The Blaugrana are immobile as well as on Inaki Pena who's on advance at Galatasaray, despite the fact that Arnau Tenas, Lazar Carevic go on to develop.