Here are the teams that Jose Mourinho and Jurgen Klopp are expected to field.
Manchester United: De Gea; Valencia, Smalling, Jones, Blind; Herrera, Carrick, Pogba, Mkhitaryan, Martial, Ibrahimovic.
Subs from Romero, Depay, Young, Fosu-Mensah, Tuanzebe, Rojo, Darmian, Schweinsteiger, Lingard, Rashford, Mata, Rooney, Carrick, Shaw
Liverpool: Mignolet, Clyne, Lovren, Klavan, Milner, Lallana, Can, Henderson, Coutinho, Mane, Firmino.
Subs from Karius, Manninger, Sturridge, Origi, Klavan, Moreno, Lucas, Stewart, Randall, Grujic, Brannagan, Ejaria, Gomez, Woodburn, Ojo, Alexander-Arnold