It is being reported that the Football Association is looking into the comments made by Liverpool boss Brendan Rodgers following his side's 2-1 defeat at Manchester City.
Rodgers, furious with a number of decisions made by the officials, appeared to question the integrity of its referee Lee Mason.
The manager said the officials' performance was ''horrendous'' and expressed his surprise that, in Mason, a referee from Bolton - barely 14 miles from Manchester - should have been in charge of the game.
Of the many incidents which left Rodgers unhappy, the most notable was the one which saw Raheem Sterling flagged offside, when he was at least two yards behind last defender Aleksandar Kolarov before racing through to face Joe Hart.
Rogers said after the game: ''The officials make mistakes, I just felt the mistakes made shouldn't have happened at this level. This is a big game".