The new signing makes his first start for the Reds, joining Roberto Firmino and Diogo Jota in attack.
Thiago Alcantara returns in midfield, but Jordan Henderson misses out with a back issue.
Mohamed Salah is named on the bench following Africa Cup of Nations duty.
Liverpool: Alisson, Alexander-Arnold, Matip, Van Dijk, Robertson, Fabinho, Jones, Thiago, Diaz, Jota, Firmino.
Subs: Kelleher, Konate, Milner, Keita, Salah, Oxlade-Chamberlain, Minamino, Tsimikas, Elliott.