Barcelona will play their second game in Group G, where they visit Juventus in the Champions League on Wednesday.
On Saturday, Barcelona lost at home to Real Madrid 1-3 in the Clasico.
Juventus, meanwhile, lost 1-1 to Hellas Verona in Serie A on Sunday.
Barcelona coach Ronald Koeman has already named a 21-man squad for the clash with Juventus.
Barcelona 21 players : Dest, R. Araujo, Sergio, Alena, Griezmann, Pjanic, Braithwaite, Messi, O. Dembele, Riqui Puig and Neto.
Others include Lenglet, Pedri, Trincao, Jordi Alba, S. Roberto, F. De Jong, Ansu Fati, Junior, Inaki Pena and Arnau Tenas.
Ter Stegen, Coutinho and Umtiti, while Gerard Pique will miss the match due to a red card against Ferencváros.
In their first Champions League match, Barcelona beat Ferencvarosi 5-1 on Tuesday, October 20 at the Camp Nou.
Champions League: The 66th season kicks off in the 2020-21 season and the 29th since the transfer window
Juventus have won two Champions Leagues, with Barcelona winning it five times in history.
The two sides have met 13 times, with Barcelona winning four and Juventus winning five and drawing four.
Barcelona's last Champions League trophy was in 2015, where they won 3-1.
The last meeting between the two teams was in the 2017/18 season
Tuesday 12th September 2017
Barcelona 3 - 0 Juventus
Wednesday 22 November 2017
Juventus 0 - 0 Barcelona
Ronaldo and Messi
A meeting between Cristiano Ronaldo and Messi is expected on Wednesday, but there is no certainty about that after the Portuguese captain has ruled himself out of contract with coronary heart disease.
But of course the duo will compete in the second leg and for the first time since Ronaldo left Real Madrid - unless the injury leaves one of them injured, which we do not expect.
Lionel Messi, meanwhile, has struggled this season, scoring just two goals - one in La Liga in the first leg against Villarreal and two in the Champions League against Ferencvarosi.
Juventus
Juventus have signed new players this year, including former boss Andrea Pirlo, who has made over 119 appearances for the club.
Outstanding players include Cristiano Ronaldo, Dybala, Khedira, Chiellini, Bonucci and Buffon. Then there are youngsters including De Ligt, Bentancur and Rabiot.
new signings include Arthur Melo, Alvaro Morata, Kulusevski, Chiesa and McKennie.
Barcelona
Barcelona, who did not win a trophy last year, have taken on new coach Ronald Koeman.
Her signings include Pedri from Las Palmas, Matheus Fernandes from Valladolid, Miralem Pjanic from Juventus and Sergino Dest from Ajax
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