Manchester City captain Richard Dunne and manager Sven-Goran Eriksson have written to the club's supporters asking them to respect the minute's silence scheduled before their derby match against Manchester United on February 10 to commemorate the 50th anniversary of the Munich air disaster.
Eight United players and several club officials were killed in the crash on February 6, 1958, as well as the journalist and former Manchester City goalkeeper Frank Swift.
City have worked with United in the arrangements, and are determined that the minute's silence is respected.
The jointly-signed letter, which will be included in a commemorative brochure given to each of the 3,000 away fans at Old Trafford, states: "The 50th anniversary of the Munich air disaster will be marked with a special commemoration.
"Many supporters will be aware that Manchester City lost one of our own in the tragedy, goalkeeper Frank Swift. Twenty-two players, staff and journalists also lost their lives.
"We ask that all supporters uphold the good name of Manchester City and respectfully support the commemorations, which will also be attended by friends and family of the victims, including Frank Swift's family. Thank you for your support."