Former Liverpool captain Jamie Carragher branded Thiago Alcantara "a liability defensively" following Saturday's 3-1 defeat to Leicester City in the Premier League.
The Reds took the lead at the King Power Stadium through Mohamed Salah but conceded three times in the latter stages to suffer their third successive Premier League defeat.
The English champions again struggled defensively as they dropped three more points, and Carragher took to social media to criticise Thiago's contribution against the Foxes.
The Spain international joined the Reds over the summer following seven years with Bayern Munich, where he won seven Bundesliga titles and one Champions League crown.
Liverpool are now 13 points behind league leaders Manchester City, who also have a game in hand, while the Reds are just one point clear of fifth-placed Chelsea as they battle to keep hold of a Champions League spot.
Next up for Jurgen Klopp's side is a clash with RB Leipzig in the first leg of their last-16 Champions League tie on Tuesday night.