Philippe Coutinho returns to the line-up along with Roberto Firmino and captains the Reds against the Baggies.
Elsewhere, Emre Can and Georginio Wijnaldum start in midfield, while Trent Alexander-Arnold begins in defence and Loris Karius is in goal.
Liverpool: Karius, Alexander-Arnold, Klavan, Lovren, Robertson, Wijnaldum, Can, Coutinho, Mane, Salah, Firmino.
Subs: Mignolet, Milner, Gomez, Henderson, Oxlade-Chamberlain, Ings, Solanke.