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

I try to enjoy what I do, and every moment of the life that I have is a blessing. What else can you do but to be happy and try to bring that joy to the other people around - especially in the tournaments. Everybody has bad days. I'm not always funny or laughing.

I have always valued the care for my body, and my mind and had holistic approach to life. I always thought this is utmost importance for my tennis.

I got married, going to become father soon, being No. 1 in the sport that I love with all my heart. I mean, it's pretty awesome.

Tennis is my life, obviously; I need to focus, I need to win. But it's not the only thing. I'm not going to play forever.

My grandfather went through a lot in his life.

In terms of playing ability there is nothing to choose between number one and 100. Instead, it's a question of who believes and who wants it more? Which player is mentally stronger? Which player is going to fight the hardest in the big points? These are the things that determine who is the champion.