It is my goal to win every time I play. But on the other hand, I also seek a balance of compassion and respect for the other players. I understand that everyone goes through difficult times, either mentally or physically, to cope with their life, to live the sport.

My father had never watched tennis, never liked tennis too much. He said, 'OK, we buy a racket, we watch together,' because we didn't know anything. It was a process of learning together that made it more interesting.

I don't think, that you can always - you can ever - get your game to perfection, you know. Only if you're Federer.

I haven't been in tennis for that long, but what I can say is that we have a lot of young guys at the top who are willing to do a lot of good things for tennis in general.

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.

I always try to have something that keeps my mind relaxed, keeps my mind a little bit off tennis.

I still feel young as far as motivation is concerned, and also the challenges that I have for the future and what I want to achieve. So I just hope this successful streak is extended to the fullest.