Liverpool were held to a 1-1 draw by Arsenal in north London on Saturday evening.
Jurgen Klopp's side took the lead through James Milner in the 61st minute but the Gunners hit back through Alexandre Lacazette.
Shkodran Mustafi has been a regular in the Arsenal first team since joining from Valencia for £35m in 2016.
However, the 26-year-old centre-back has regularly been criticised for his below-par performances in the Premier League.
Mustafi has played every minute this season but one former Premier League defender is not terribly impressed.
Jamie Carragher was carefully analysing Liverpool's opening goal on Sky Sports Monday Night Football show.
Arsebal goalkeeper Bernd Leno was criticised by the BT Sport commentators during the live coverage - but Carragher pointed the finger of blame at Mustafi.
"I've got a problem with centre-backs wanting to stay in the middle," said Carragher on Sky Sports.
"If he [Mustafi] gets into a better position Mane doesn't make that run.
"People only run when they see space, if I stand in that space, he'll look but he won't run.
"Yes the keeper can do better, but I think Mustafi is more culpable than anyone in terms of his starting position and can he do more to stop the cross?
"He's got to do much more to stop the cross, he doesn't actually attempt to stop it, throw your leg at it, do something."
Watch footage of Milner's goal below.
Carragher's right - Mustafi did not do enough to stop Mane's cross.
The Sky Sports pundit has previously suggested that Mustafi "isn't good enough".
“Mustafi, to be honest, I don’t think was great at helping the two young lads around him," said Carragher in January 2018.
“It’s not just about having young players there, I don’t think Mustafi is good enough really."
Club captain Laurent Koscielny is expected to return to first team action soon and the German defender could find himself out of the first XI.
Should Arsenal be looking to offload Mustafi? Let us know your opinion by leaving a comment below.