The pair are brought into the line-up in place of Divock Origi and Jordan Henderson, who drop to the bench for the 12pm GMT kick-off.
Dejan Lovren is fit to take a place among the substitutes.
Liverpool: Alisson, Alexander-Arnold, Matip, Van Dijk, Robertson, Fabinho, Wijnaldum, Lallana, Mane, Salah, Firmino.
Substitutes: Mignolet, Lovren, Henderson, Keita, Shaqiri, Origi, Sturridge.