Messi is probably the best player of the last 20 years.

I just want to be as successful as I can in football.

We will go back to playing like Manchester United.

As players, you just play for the club. I love Man United, I'm going to play for Man United, and that's what my focus is on.

In my career, there've been three stages really. There's been the stage when you come into a team, you don't feel the nerves, you just go out and play. Then through your 20s you start thinking a lot more about the games and what's at stake. And then, as you get more experienced towards the end of your career, you enjoy it a lot more and you're a lot more relaxed.

I had an early taste of fame. I was 20, going out with TV presenter Dani Behr and we'd have paparazzi chasing us. I'm not comfortable being photographed, though I accept it is part of the job. I had to ask myself, 'What comes first, being a celebrity or footballer?

You get yourself prepared for a big game, you get yourself up for it. Then afterwards you don't sleep or eat properly.