Jurgen Klopp and Erik ten Hag have released a joint statement to urge Liverpool and Manchester United fans to stop "tragedy chanting" ahead of their meeting at Anfield on Sunday.
Liverpool supporters have been asked to stop singing about the 1958 Munich air crash while United fans have been told to refrain from chanting about the 1989 Hillsborough Stadium disaster and the 1985 Heysel disaster.
Both sets of supporters have been condemned for chanting about the tragedies in the past.
Liverpool manager Klopp said: "One of the main reasons why the rivalry between Liverpool and Manchester United is so special is that it is so intense and no one should ever want to change this.
