Sir Alex Ferguson found it difficult to hold back his frustration after a controversial penalty decision cost Manchester United two points against Newcastle.

32009 - Penalty an 'absolute travesty' - Ferguson

United led through a lucky Javier Hernandez strike, but were then pegged back by a Demba Ba penalty. However, replays show Rio Ferdinand clearly won the ball when challenging Hatem Ben Arfa.

The champions had plenty of chances to win it, but Ferguson was left incensed by the assistant referee, who advised the referee to give the penalty when he seemingly was going to only award a corner.

"To not get the three points from that is just a travesty. Everyone, including the referee, was astounded. He was put in a terrible position. Why can't the referee overrule it when he is only eight yards away?" Ferguson said on Sky Sports.

"The problem is that the referees are full-time and the linesmen are not, and whether he ever gets a game again, the assistant referee, is not for me to decide but it was an absolutely shocking decision.

"It costs you. Two years ago when the linesman gave the offside goal against Chelsea it cost us the league, so hopefully we're not saying that at the end of May."

Newcastle deserved some credit for the barrage of late attacks they managed to withstand, despite having Jonas Gutierrez sent off. Tim Krul made a string of fine saves, former United defender Danny Simpson denied Hernandez with a magnificent goalline clearance and the Mexican had an effort ruled out for offside deep into stoppage time.

"It was a fantastic performance by us and an incredible result," said Ferguson. "I could see us scoring because we kept creating chances and the normal pattern of these 15-minute surges is that we take our chances and we are okay.

"They put their bodies on the line. I give them credit for that. We absolutely slaughtered them but we just couldn't get the result. It is disappointing but if we play like that every week, I will be very happy."