"I just wanted to go to a place where I knew I would feel happy - and I am really happy now,'' he said. ''Manchester United is a massive club. In England it is the club with most fans around them. It is a big challenge to be here.
"It will be amazing for my career as well. It is a big statement.''
And, despite the present woes, Mata has no concerns about the future.
He added: "Everything is going to be fine, with the squad we have and the players we can [buy] in summer.
"It is really important for the club to have an opportunity to play in the Champions League next season. That is what this club deserves.
"But I have no doubt this club is going to be successful for sure.''
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