Manchester City manager Sven-Goran Eriksson has urged Blues supporters to respect Sunday's minute's silence ahead of the derby with United.
A full house at Old Trafford will have the chance to pay tribute to the eight Busby Babes who died in the Munich air disaster 50 years ago.
And Eriksson hopes there is no repeat of the interruptions which marred the silence before England's match with Switzerland at Wembley last night.
'I believe in being respectful and I know Manchester City Football club has been built on respect,' Eriksson told the club's website.
'It was disappointing that last night's period of silence at the England game was disrupted and I hope everybody on Sunday will show maturity and respect for everyone who died at Munich.
'For anything else to happen would be a huge disappointment.'