The vile chant directed at Phil Foden's mother by Manchester United supporters is, sadly, just the latest example of a stomach-churning trend marring the game.
Pep Guardiola told the punters responsible that they should be 'ashamed' after the song was audible during Sky Sports' live coverage of the derby on Sunday.
Foden himself could be seen ironically clapping the supporters and giving them a thumbs up, and he was jeered after being hooked in the 58th minute at Old Trafford.
However, it is understood the Football Association won't take action.