The Brazil striker missed the Reds’ victory over Huddersfield Town on Friday night due to a slight muscle strain, but has travelled to Spain for the first leg of the semi-final tie.
Fabinho was among the players who departed Liverpool’s John Lennon airport on Tuesday afternoon after he too missed the last fixture following a clash of heads at Cardiff City.
Rhian Brewster has also been included in the squad for the contest at Camp Nou.
Liverpool squad for Barcelona: Fabinho, Van Dijk, Wijnaldum, Lovren, Milner, Keita, Firmino, Mane, Salah, Gomez, Alisson, Henderson, Sturridge, Moreno, Oxlade-Chamberlain, Mignolet, Shaqiri, Brewster, Robertson, Origi, Matip, Kelleher, Alexander-Arnold.