Juan Mata admits he has felt comfortable at Man United "from the first minute"

Mata made a steady debut in Man United's victory against Cardiff at Old Trafford. Photo: PA

Juan Mata is delighted at how quickly he has settled into life at Manchester United.

Even though he had just two training sessions under his belt, United's club-record £37.1million new boy lasted all but the final seven minutes of Tuesday's 2-0 win over Cardiff.

Mata could even claim a partial assist for Robin van Persie's opener given it was the Spain midfielder who delivered the impressive 50-yard cross-field pass to Patrice Evra that launched the sixth-minute move.

And with United both winning and, at times, looking more convincing than they have done since the turn of the year, Mata has every reason to be satisfied.

"I have felt comfortable at this club from the first minute," said the 25-year-old.

"Time has gone so quickly but the welcome has been amazing.

"The lads are really good and there is a great atmosphere."

And the good news for United is that Mata is acutely aware there is still much more to come from him.

"To be honest I didn't train that much last week because of the transfer," he said. "I know I can improve."

And his efforts will only be enhanced by the return to fitness of Robin van Persie, who had missed 11 games with a thigh problem, and Wayne Rooney, who played only once in 2014 before succumbing to a groin injury.

"Rooney and Robin are two of the best strikers in the world," said Mata.

"It will be amazing to play alongside them.

"I just want to help them, and help the team win matches.

"We need to sustain this feeling.

"I am always positive. If any club can come back and climb the table it is this one.

"It will take time but hopefully we can go back up the table. That is what we have been talking about in the dressing room.

"We will try to win as many games as we can to the end of the season, hopefully all of them."