Everton boss Frank Lampard has been charged by the Football Association following his comments after his side's defeat in the Merseyside derby last month.
Lampard claimed Liverpool would have been awarded a spot-kick had Mohamed Salah gone down like Anthony Gordon did in a challenge that referee Stuart Attwell did not penalise.
Gordon, who had been booked for diving in the first half at Anfield, fell after apparent contact from Joel Matip, but Attwell neither awarded a penalty nor issued a second yellow card.
The Toffees subsequently contacted the Professional Game Match Officials Board for a second time this season with concerns over the decision.
Lampard said in his post-match interview: "It is a penalty for me. You don't get them here. If that was Mo Salah at the other end he gets a penalty. I'm not trying to create conflict; it's just the reality of football.
"I have played in teams in the top half of the league - you get them. That was a penalty for sure. It's a clear foul."
The FA has taken exception to those comments, citing an implication of "bias and/or attack the integrity of the match referee or referees generally".
An FA statement read: "Frank Lampard has been charged with a breach of FA Rule E3 in relation to post-match media comments that he made following Everton FC's Premier League match against Liverpool FC on Sunday 24 April.
"It is alleged the manager's comments constitute improper conduct as they imply bias and/or attack the integrity of the match referee - or referees generally - and/or bring the game into disrepute contrary to FA Rule E3.1.
"Frank Lampard has until Monday 9 May 2022 to provide a response."
In March, the club received an apology, following another official complaint, from PGMOL chief Mike Riley following the failure to award a handball against Rodri in the home defeat to Manchester City.
On that occasion referee Paul Tierney was unsighted and the VAR, Chris Kavanagh, decided there was insufficient evidence to show the ball had hit the City midfielder on the arm despite television replays being fairly conclusive.