Klopp and his players arrived at the John Lennon Airport ahead of their trip to the Spanish capital on Friday, and there are no notable surprises among the squad.
Teenage striker, Rhian Brewster was among the squad, while Roberto Firmino, who has been struggling with a knock, has also been included.
Georginio Wijnaldum, who netted twice against Barcelona in their 4-0 win in the previous round, is another player who is set to play.
Liverpool squad: Alexander-Arnold, Alisson, Brewster, Fabinho, Firmino, Gomez, Henderson, Kelleher, Lallana, Lovren, Mane, Matip, Mignolet, Milner, Moreno, Origi, Oxlade-Chamberlain, Robertson, Salah, Shaqiri, Sturridge, Van Dijk, Wijnaldum.