United huffed and they puffed until the end, but everything was carried out in the knowledge that theirs was a hopeless task. It is the FA Cup or a second successive barren season for Van Gaal and United now.
For Klopp, and Liverpool, it is onwards and upwards.
MAN UNITED (4-2-3-1): De Gea; Varela (Valencia 46), Smalling, Blind, Rojo (Darmian 62); Carrick (Schweinsteiger 70), Fellaini; Mata, Lingard, Martial; Rashford. Booked: Blind, Fellaini, Schweinsteiger. Goal: Martial 32 pen.
LIVERPOOL (4-2-3-1): Mignolet; Clyne, Lovren, Sakho, Milner; Henderson (Allen 71), Can; Lallana, Firmino (Benteke 84), Coutinho; Sturridge (Origi 68). Booked: Coutinho, Clyne. Goal: Coutinho 45.
Referee: M Mazic (Serbia).