Liverpool boss Jurgen Klopp offered no defence after Mohamed Salah was booked for diving in defeat at Chelsea on Sunday.
After 11 goals in seven games during a stunning stretch of form, Salah has now gone three matches without a goal over the past week.
Against Chelsea, he was booked in the first half when he fell to the ground easily under minimal contact from Gary Cahill.
Referee Anthony Taylor immediately showed a yellow card.
Afterwards, Klopp remarked: "Yes I think it was a dive, was it? Or he waited for the contact, I am not sure, so that is not what I want to see, that is not what he wants to do. But obviously it happened.
"With all the other situations, in that situation he couldn't get any foul any more. That is not right as well. It was always like this and you have to deal with that.
"He has to be much better, he can do much better and he will score again, there is no doubt about that. There was no space for nothing. He can play with no space actually but not today. That is it, all good."