Sir Alex Ferguson, the Manchester United manager, has written to the club's supporters, urging them to behave themselves at Liverpool on Saturday.
Improved behaviour by United fans at the Premier League match in October has led to a large increase in their ticket allocation being released for the FA Cup fourth-round tie at Anfield. However, it will be the first meeting between the teams since the race row between Patrice Evra and Luis Suarez that ended with the Liverpool striker being given an eight-match suspension.
In a letter to supporters who have tickets for the game, Ferguson makes no reference to Evra or Suarez, or the row that he has said will have no impact on relations between the clubs. However, he does ask for "positive, witty and loud" support.
The letter said: "I wrote to fans attending the away match in October urging them to co-operate with stewards and officials at Liverpool so we can make a strong case for restoring our allocation for future United games at Anfield. The fans did almost everything asked of them. Please do everything you can to continue that good work.
"Your support is vital to the team and down the years that has been especially true at Anfield. But please put the emphasis on getting us into the next round and giving the sort of support you are famous for – positive, witty and loud."