Sir Alex Ferguson risked the wrath of The FA after criticising referee's assistant Darren Cann's performance during Manchester United's 3-3 draw with Chelsea on Sunday, with the Scot claiming his side were cheated out of an extra two penalties.
United completed a stunning comeback from 3-0 down at Stamford Bridge thanks to two Wayne Rooney penalties and a late effort from substitute Javier Hernandez after a first-half Jonny Evans own goal, and quick-fire efforts from Juan Mata and David Luiz had given the hosts the lead.
Chelsea boss Andre Villas-Boas was left incensed after Howard Webb awarded United a penalty after Daniel Sturridge brought down Patrice Evra in the box, while his sense of injustice was heightened further when Branislav Ivanovic's tackle on Danny Welbeck ended in the same outcome.
However, Ferguson remains adamant that both challenges warranted a penalty being awarded, and said his side could have gone on to win the game if Cann had seen Jose Bosingwa's pull on Ashley Young's shirt amongst other incidents.
"The two penalties in the second half were justified. I think we could have had four in the game," he told Sky Sports.
"The linesman has given two penalties against us at Old Trafford in the last two years, one against Arsenal and one against Liverpool. 45 yards away and he gave them. I don't blame Howard Webb, I blame the assistant.
"There was a pull on Ashley Young, inside the box, in front of the linesman and he doesn't give it. Yet he gives them at Old Trafford. There was a pull on Ashley's shirt so he's not diving, obviously. I can't understand it, where do they get them from?"
The draw at Stamford Bridge meant that United lost ground in the title race to rivals Manchester City, with Tottenham able to apply pressure on Ferguson's side from third when they take on Liverpool on Monday evening.
Despite the heroic nature of United's comeback Ferguson still feels it was a case of two points dropped rather than one gained, while the Scot also lamented his side's 'terrible' start to the game.
"It's two points dropped," he said. "We played so well, apart from the 10 minutes straight after halftime where we got off to a terrible start and lost two goals in five minutes.
"But, it's not easy to come back from two goals down. That is a massive effort from our players. I thought we were the far better team.
"For Chelsea's second goal we didn't close the cross down. It was a fantastic finish by Mata, a marvellous finish but their first and third were own goals so that's a bit of bad luck.
"But it didn't affect the players that much. Once we got over those 10 minutes I thought we played very well. It was a massive effort from the team, and a great game. For a neutral watching that game it was fantastic."