Chelsea manager Jose Mourinho believes his team's push for a third Premiership title is being undermined by decisions in favour of Manchester United.Mourinho, speaking after his team's goalless draw at Newcastle, claimed Middlesbrough were denied a clear penalty at Old Trafford on Saturday.
"The circumstances are difficult for us with the new football rules that we have to face," said Mourinho.
"It is not possible to have a penalty against Manchester United."
Middlesbrough's Lee Dong-Gook appeared to be fouled by John O'Shea in the final minute of their 1-1 draw with United at Old Trafford - but a penalty was not awarded.
Mourinho felt that his Chelsea team should have been awarded a penalty at Newcastle for a foul by Stephen Carr.
"It is not possible to have a penalty in favour of Chelsea," added Mourinho.
"We should have had a penalty, involving Stephen Carr, it was a clear penalty.
"I have the right to speak. I think nobody can punish me because I speak the truth and I am not saying the referees are not honest.
"But yesterday was a penalty and today was a penalty - and if somebody wants to punish me for that it means the end of democracy and we go back to old times."
Chelsea, who have an inferior goal difference, could have closed the gap to one point on United if they had won at Newcastle.
But with four games left for each team - and a meeting between the two at Stamford Bridge in the penultimate game of their Premiership campaigns on 9 May - Mourinho said he was satisfied with his team's position.
"It was a chance missed to close the gap," added the Blues boss.
"But at the same time we had an away game and Man United had a home game and at the end of it the gap between us is the same. I do not think it is a drama.
"The target has been for a long time to finish this period - we have three of our last four matches at home and Man United have three of their four away - in a condition to be champions."
Mourinho was full of praise for his players after their match at Newcastle - and admitted the Magpies deserved a draw.
"I cannot ask for more of my players," added the Blues boss. "I think that what they are doing is absolutely amazing.
"We played against a team with fresh legs and without any kind of pressure.
"I'm not saying we deserved to win. Over the 90 minutes Newcastle played well and deserved a point."
· 
Manchester United Supporters Association, Only We Play With Heart...
