I don't smile all the time, but I smile inside.
Like Nemanja Vidic, I came from a small town in a small country in Eastern Europe, but we had reached the top.
Sport is healthy, but it can be the opposite of that at the top level. You have so many injuries; you put your body through so much. You wake up at 2 in the morning, and you cannot move.
When United wanted me, I was like a horse with blinkers on. I was not interested in anyone else. City offered more money, but the team was weaker, and their history couldn't compete with United.
I wanted to win trophies and play for the biggest club, and the biggest club in England is Manchester United.
Nobody wants to play bad football in a game; everybody wants to win, and every player wants to show how good he is. But, you know, sometimes you simply have a game where nothing is happening.
On the pitch, you can have the feeling that everything is happening for you, from passing to tackles.
Sometimes self-esteem affects you on and off the pitch. Until you face your next game and you miss an easy chance, for example, then you feel not as great.