Manchester United manager Jose Mourinho is not growing any grey hairs having declared that he sees the Sunday’s match against Chelsea in the Premier League as ‘just a game’.

Mourinho was in charge for the Blues last season when they endured a torrid campaign before he was sacked.

He is yet to beat his former side since taking over at United last summer.

At his Friday's press conference, Mourinho told reporters: “You say that word emotion. For me, it is just a game. One more game. No difference for me, not at all.”

Mourinho does not believe the Blues are top purely because their players are fresher.

“First of all, some guys are fresh, some guys are tired,” he added. “That’s very important in football.

“But, for some reason, they are top of the league. It’s not just because they are fresh. It’s also because they have individual quality and they have collective quality.

“They have a certain style of play, they stick to it, they do it very well. Not every team defends with 11 players, and they defend with 11 players.

“Not every team is so objective in their counter-attacks. They are very objective in the counter-attack and they have individual players out of the context of the game that can also resolve the problems. So they are a very strong team.”

United are currently fifth in the Premier League, four points behind Manchester City, with a game in hand.

Chelsea are top of the table, seven points ahead of second-placed Tottenham.