Cape Town - Former England and Manchester United defender Gary Neville says Liverpool 'lack pace' and has expressed doubts over their tactics.
Speaking on Sky Sports Monday Night Football, Neville has labelled Brendan Rodgers' side as "rigid".
Liverpool showed little attacking intent when they faced arch-rivals Manchester United at Old Trafford on Saturday as they slumped to a 3-1 defeat.
"At times over the last few years we have asked for them to be more rigid but now they seem to have gone the other way," said Neville.
"The lack of pace and runners in behind is a great concern for me.
"Now that Sterling and Suarez have gone and Sturridge is injured, they have been replaced with players without the same electricity who come to the ball. It's a lot easier to play against.
"If Liverpool's front players all want to come to the ball, who is making the runs behind the defence? If you don't make runs behind then it's a nightmare."
With just three goals in five matches, they are the joint-second lowest scorers in the top flight this season.
Rodgers has a chance to steady the ship on Sunday when Norwich visit Anfield.
The match kicks off at 17:00.