But when I'm losing a few matches, suddenly 'It's his fault', 'He doesn't want to practice', 'He doesn't need it', 'He doesn't care'. And when everything goes well, there are people coming behind the stone, saying, 'Oh, my God, he's back finally, and I was there to help him out'.

I think it's difficult to be No. 1. 'There's too much attention, too much expectation from other people.

I didn't change the world.

Probably I'll not be so successful if I will keep everything in myself inside of me.

I love tennis, but I just don't like grass.

I'm different than another person who wants to lay back and do nothing for rest of the life and talk nonsense on ESPN... I will not do that. I want to achieve something else.

It is very hard for me to switch from clay to grass.