Arsenal 2-2 Man Utd: Fergie vents his fury over Gallas equaliser

Sir Alex Ferguson's frustration over the injury-time William Gallas equaliser that denied Manchester United victory over Arsenal boiled over into a furious tirade at referee Howard Webb.

The Scot also hit out at Arsenal, branding security at the Emirates Stadium for Saturday's lunchtime clash a "disgrace" after he and his staff were abused by Gunners fans sitting close to their dugout.

The United manager was convinced his side had done enough to win Saturday's top-of-the-table clash when Cristiano Ronaldo rounded off a sweeping move to put them 2-1 up with eight minutes left.

But Gallas ruined his afternoon with an equaliser the Scot insisted should have been ruled out because of a foul in the build-up.

"I think Howard Webb has a great chance to be the top referee but today was a big game for him and, at times, he favoured Arsenal," Ferguson said.

"Their second goal came from him not giving a free-kick for a foul on Louis Saha on the far side. It should have been a foul for us."

Ferguson believes it can be difficult for referees not to be influenced by hostile home crowds.

"It is very difficult for the referee," he said. "On our bench, we were getting terrible abuse from people two or three feet away from us.

"There is a lack of security here. It is absolutely disgraceful the abuse you and your staff take. All sorts of things are been shouted and screamed at you and there is an absolute danger here."

Ferguson added: "We played some good football. It was a great piece of football between Louis Saha and Patrice Evra, and a great pass for Ronaldo (for the second goal).

"Arsenal had some good possession, but I think we had the better chances during the game.

"We were controlling the game, but one cross took a faint touch across the face, was sent back in from the back post, and it was over the line.

"I thought we had done it, but this is football. I can't believe it. We have thrown it away."

Ferguson was equally disappointed at the way United allowed Cesc Fabregas to score two minutes after half-time, cancelling out the Gallas own goal that had given United the lead just before the interval.

"It was a lack of concentration, particularly for their first goal," Ferguson added. "We should have cleared it towards the corner flag, but didn't.

"Then in the second, the ball took a faint touch and went across the face of goal, was sent back in at the back post, and then was over the line. We lost our bearings."