Barcelona have announced their 19/20 UCL squad, Messi, Suarez and Dembele are all included, youngsters Hiroki Abe, Araujo & Sarsanedas earn a first call-up, red-hot Fati is no need to be named in list A because he is under 21 years old.
All of the players of the first team and also Abe, Araujo and Sarsanedas, of Barça B, are part of the list A. Though Messi, Suarez and Dembele who were all injured right now.
Full List
Goalkeepers: Ter Stegen, Neto
Defenders: Semedo, Pique, Todibo, Umtiti, Firpo, J. Alba, Lenglet, Wague, Araujo, Roberto
Midfielders: Busquets, Arthur, De jong, Vidal, Alena, Hiroki Abe, Sarsanedas, Rakitic
Forwards: Suarez, Messi, Dembele, Griezmann
Remember that, according to UEFA rules, the B list can be sent until midnight the day before a Champions match. In this case, players like Ansu Fati, Riqui Puig, Abel Ruiz or Iñaki Peña meet the requirements of being under 21 years of age - not like Sarsanedas, who is 22 - and of having been at the Club for at least three years, at contrary to Abe and Araujo.
All of them could also play without problems in the Champions League if they are registered in the aforementioned list B.