Bournemouth have contacted the Football League to lodge an official complaint regarding the penalty shoot-out at the end of the play-off semi-final at the Galpharm Stadium.
Referee Neil Swarbrick told Bournemouth officials that he was instructed by police and safety officials before the kick-off that the shootout should take place at the home fans' end rather than the usual method of tossing a coin.
Cherries chairman Eddie Mitchell told the Daily Echo: "We don't want to make it sound like sour grapes but we don't think it was fair to choose ends before the game because it gave them an advantage.
"It should have been determined by the toss of a coin. I'm sure there would have been an outcry if somebody had tried to choose our end.
"We feel strongly about it because it could have cost us a place at Old Trafford. If people don't voice their opinions then things like this could happen again. We want to make sure it doesn't happen to another team."
Town are making no comment on the penalty shoot-out complaint by Bournemouth for two reasons.
Firstly, they have had no official notification from any source about it .
And secondly, the full focus of everyone at the club at the moment is Sunday's play-off final against Peterborough.
