Graeme Souness was critical of Manchester United pair Raphael Varane and Fred after Cody Gakpo put Liverpool 1-0 up at Anfield on Sunday.
The Dutchman finished coolly past David de Gea after an excellent run and pass from Andy Robertson, but Souness felt the goal should have been avoided.
'Fred gets it wrong,' he told Sky Sports. 'He doesn't need to take those steps to his right, an then he ends up slipping.
'Varane is very slow, he can't get his feet in the right place. You have to give Andy Robinson great credit, but then when the shot comes in [Lisnadro] Martinez cuts across De Gea's sightlines, he can't even make an effort to try and save it.
Liverpool extended their lead to 4-0 after the break thanks to a goals from Darwin Nunez and Mohamed Salah plus another from Gakpo.
The result will come as something of a shock for United fans, after an excellent few weeks for Erik ten Hag's side that have seen them win the League Cup and mount a challenge for the title.
Baring a miraculous recovery, United look set to remain eight points off second-place Manchester City, although they are still fighting in the FA Cup and Europa League.
More to follow
YashKondekar
508
glory Glory man utd π€£π€£π€£π€£π€£π€£π€£
E-Timberland
400
The last time united lost 5:0 to Liverpool they Ronaldo was the problem! Now who is the problem to their latest 7:0 lost to the same Liverpool?
shufflebeng85
386
This match was officially sponsored by
johacdmort
362
I'm a Chelsea fan......they said we are not doing well this season but not as bad as Man U with 7 0 slap from the great Liverpool.
General002
338
Martinez the butcher, Rashford the best striker, Casemiro the best midfielder π€£π€£π€£π€£π€£π€£ Penandez ooooh useless rubbish team not even one good player to talk about
samlegxzy
322
The Rashford that play against Liverpool
Clintonbillions
305
Liverpool to Manchester United
E-Timberland
296
Thank you Liverpool for stopping the world from noice pollution
OdunfaDavid
286
Liverpool do a wonderful deliverance for Manchester united πππππππππ
OSAKA123
256
pedri golden boy what do you see. I see golden hair in pain π
tiacekuy
209
I ASKED AGAIN, DID CASIMERO DIDN'T PLAY OR BRUNO FERNANDES OR RASHFORD???
ramza
193
casemiro today was partying πππ
foweopru
126
if Maguire was there they would have put the blame on him now they are frustrated poor united