I physically feel very fit. I’m very motivated to keep on playing on a very high level. I’m going to try to use these years in front of me to fight for the number one of the world and fight for the biggest titles.

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.

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.

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.

I think if you do not enjoy your time, your life, if you do not live intensely and do not spend time with your family, in one way or another it will be reflected in your career.

I don't think there has been enough communication between the players and the tournaments. In one sense it's just as much the players' fault. Players talk between each other and in the locker room about things that can be improved and then when the time comes to talk and really do something about it they stop.

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