Joking around is part of my personality, just who I am.

Obsession is a negative word, I do not think that obsession can bring positive things. Not only in tennis but, I mean in any situation of life.

My grandfather went through a lot in his life.

I like my groundstrokes, I can say. I like it. That's my game - I'm a groundstroke player and I play pretty aggressive.

Messi is the best player on the planet and he keeps on improving at Barça, now the best team in the world. What Messi does on and off the pitch is an inspiration for children who dream of becoming a footballer.

The confidence is there, the game is there, but physically you can't fight nature sometimes. You can't do much about it.

My strokes just weren't there.