Messi is on a different level. The fact he is doing what he is year after year says that he is the best of all time.

Of course I have the odd bad game like other players. But I can't accept that. Especially when things don't go right for United. It all means so much to me to be succesful here. It drives me crazy at times.

Italy and Spain really are not my countries.

I feel very strong as an individual, but as a famous footballer I know I am prone to certain things. All the media have a continuous interest for me. It varies from once a year to every day interest.

The real big stars only keep this up for about seven years.

My back to the goal, physically fighting off defenders, trying to bang my goals in, every week I have to do the business for this club. That's the life of a striker.

When it comes to losing with United, I feel solely responsible for it. I can't help it. My brain will work like mad after a defeat. I want to know where I have made the wrong decisions, how I could have changed things for this fantastic club.