Mourinho has turned up the psychological pressure on Man Utd

United hold a six-point Premiership advantage after Chelsea's goalless draw at Aston Villa.

He said: "Considering the problems Chelsea have had, Manchester United should be 10, 12, 14 points clear of us. I am happy to be six points behind.

"In my opinion, Manchester United did not take advantage of our bad moments."

Interview: Chelsea boss Jose Mourinho

Manchester United didn't take their opportunity on Monday when they drew at Newcastle Jose Mourinho

Mourinho is also preparing to welcome back John Terry, Arjen Robben and Peter Cech from injury.

Skipper Terry has been pencilled in for the next league game with Wigan at Stamford Bridge on 13 January, with Robben and Cech set to be available for the trip to Liverpool the following week.

Mourinho said: "Six points is nothing. In previous seasons, we have gone 11, 12 points clear and killed things off by Christmas.

"They (Manchester United) didn't take their opportunity on Monday when they drew at Newcastle.

"Manchester United have dropped five points at West Ham and Newcastle recently and the gap could have been bigger.

"Now we look forward to the second half of the season when we should have some people back pretty quickly.

606: DEBATE I'm sure it's only mind games but it's a bit annoying to hear Mourinho make jibes against United AD 606: Have your say

"John Terry should be available for the next Premiership game with Wigan and Petr Cech and Arjen Robben for the game after that at Liverpool."

It was not all good news for Mourinho, with defender Khalid Boulahrouz suffering suspected medial ligament damage at Villa Park which the Blues boss reckons will sideline him "for four to six weeks".