The B team players are goalkeepers Inaki Pena and Arnau Tenas, defender Oscar Mingueza, midfielder Ilaix Moriba and winger Konrad de la Fuente.
Interestingly there’s no room for Santiago Ramos Mingo who has trained with the first-team recently and was in the squad for the games against Celta and Sevilla.
Here’s the full list:
Goalkeepers: Ter Stegen, Neto, Pena, Tenas.
Defenders: Dest, Pique, Araujo, Lenglet, Alba, Umtiti, Firpo, Mingueza.
Midfielders: Busquets, Alena, Pjanic, Puig, Fernandes, Roberto, De Jong, Ilaix.
Attack: Griezmann, Braithwaite, Messi, Dembele, Coutinho, Pedri, Trincao, Fati, Konrad.
Barcelona play two of their group fixtures at the end of October. First up are Hungarian champions Ferenvaros at the Camp Nou, followed by a trip to Juventus.