Of all the issues rolling round in Sir Alex Ferguson's mind ahead of Manchester United's visit to Liverpool tomorrow, a woeful recent penalty record is not among them.

So far this term, United have been awarded three spot-kicks and all of them have been squandered.

Nani was the latest to fail against Galatasaray on Wednesday, completing unhappy hat-trick after Robin van Persie was unable to convert at Southampton and Javier Hernandez was repelled by Wigan keeper Ali Al Habsi last weekend.

Ferguson is pretty certain that run will not be extended at Anfield, however.

"It will not be an issue," he said.

"I have been here 25 years and 10 months. I have had one penalty kick at Anfield - Denis Irwin scored it in 1999 - so I don't need to talk about that. Wait until the next game."

Of far more significance are the commemorations to mark the first Liverpool home game since the damning judgement on the Hillsborough tragedy was released last week.

It means emotions will run even higher than normal, and fears about the conduct of United fans have already been expressed following the anti-Liverpool chants of a small minority last weekend.

Ferguson believes enough has now been said, and the players should be allowed to get on with the game.

But he reminded fans all he is asking for is the boundaries of respectability to be observed, not an entire breaking down of enemy lines.

"I don't think it will change in terms of the animosity towards each other," said Ferguson.

"But there is a point where it goes beyond the pale and the chants refer to Munich or Hillsborough or whatever.

"In the past it has been that way.

"It is not all the supporters. It is a minority. But the minority can create the headlines to get a voice. They want to be heard.

"They have an opinion. It is an obscene opinion, nonetheless it is there. It doesn't reflect on the general attitude of both clubs. Maybe there are 400 or 500 supporters on either side who bring their clubs into disrepute a little bit.

"Hopefully we will have the end of that."

That both sides also have an urgent need for points should not be overlooked.

Brendan Rodgers is still to win a Premier League game since replacing Kenny Dalglish as Liverpool manager in the summer, with Ferguson underlining the demands of American owner John Henry.

"The pressure for everyone to always be in that top four is immense," said the Scot.

"Harry (Redknapp) did it a couple of years ago at Tottenham. Last year he didn't make it and he is out of a job.

"His relationship with the chairman probably led to that. But if Tottenham had been in the Champions League I don't think anything would have happened."

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