Manchester United manager Sir Alex Ferguson has expressed anger at the decision to overturn Chelsea captain John Terry's sending off against Manchester City last weekend.
The Scot believes the appeal verdict was influenced by Keith Hackett, head of the Professional Game Match Officials Board, and not referee Mark Halsey.
Ferguson, quoted in The Times, said: "From what I have heard, Keith Hackett has told the referee to rescind the red card and he wouldn't do it. If it had been a Manchester United player, Keith Hackett wouldn't have done this."
He added: "If the referee has made a mistake, this is going to happen all the time."
Terry is now free to face United this weekend.
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