Jose Mourinho has urged both Manchester United and Liverpool supporters not to overshadow Monday’s Premier League game at Anfield with disrespectful chants.
Last season, both clubs were fined by Uefa following their Europa League last-16 tie as fans mocked tragedies suffered by each side.
“I will be really sad if in such a big football match that was a negative point,” said United manager Mourinho.
Liverpool boss Jurgen Klopp said the fixture “will never be a normal game”.
The Reds defeated their rivals 3-1 on aggregate in the first meeting between the clubs in European competition, but the tie saw a number of unsavoury scenes.
Liverpool were sanctioned for setting off fireworks, a late kick-off and had to pay for damages caused by fans at Old Trafford, while United were charged for stairways blocked at their stadium.
Rival fans were also seen fighting in the stands, seats were thrown and flares were lit in Manchester.
Klopp added: “We should use this opportunity on the pitch to make sure all the nice stories are written about what happens on it, and not around.
“Big respect is what this sport stands for and you face your biggest opponents and play football against them. That is the battle we have, that is where we should show who is the best and create a special atmosphere.”
Last season’s games were marred by chanting about the Munich disaster and the Hillsborough tragedy.
In 1958, eight United players were among 23 people who died after their plane caught fire and crashed in Munich.
The Hillsborough tragedy saw 96 Liverpool fans die at an FA Cup semi-final tie with Nottingham Forest in 1989.
“In football you have some football tragedies,” said Mourinho. “You lose a big match or make a mistake. You can make fun of it.
“Human tragedy is something much more serious. It is the last thing someone should use in a football pitch. Really big tragedies are serious.”
Mourinho’s side go into the game lying in sixth place in the Premier League table with 13 points, two places and three points adrift of Liverpool.
Article source: http://www.bbc.co.uk/sport/football/37657458