The News of the World says Ferguson will ban his stars from holding a Christmas party in the wake of Wayne Rooney's prostitute scandal.
Club insiders say Fergie was livid to discover from the Rooney fall-out that players appeared to be ignoring his warnings about behaviour.
And he was also worried his squad had met at Rio Ferdinand's new Italian restaurant and partied with the likes of hooker Jenny Thompson.
A source said: "It's pretty much the end of the line for the traditional bash.
"In recent years it was seen as more acceptable for private functions to get the green light rather than when the players went on bar crawls in the city.
"But Sir Alex can't even legislate for what goes on behind closed doors.
"No one wants to be a killjoy but the players have a busy Christmas programme and this has been a situation of their own making."