Speaking ahead of their clash against Manchester United on Sunday, Chelsea boss Jose Mourinho again reaches into his bag of tricks to mess with the opposition's mind.

This time it is an alleged "inside information" that his club's forthcoming opponents are "unhappy."

"My feeling, which is based on years of communicating with Sir Alex and some inside information, is Man United are not happy," Mourinho told The Daily Mail.

However, Mourinho was quick to balance out his statement so as not to polarize anything.

"But they are calm," he added.

"They trust David. David trusts them."

Mourinho opined that the pressure mounting at Old Trafford is influenced by external factors, like the media, brought about by their inconsistent form.

The "Special One" emphasized that United should focus on themselves and not to go with the tide.

"The most important thing in all of this is not the pressure that comes from the outside, it's the reality of the inside," he said.

While the Portuguese admitted that the Red Devils will be able to adjust sooner rather than later, it will not be enough for them to have a fighting chance for the Premier League title.

"They will get back on track, although it is probably too late to win the league because they're too many points behind the leader," He intimated.

Chelsea are undefeated in their recent six games in the Premier League, while United won five, but suffered an upsetting 2-1 loss in the hands of Tottenham.

Both teams will come out aggressive on Sunday as each of them will not settle for anything less than a full three points.

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