My game is a lot about footwork. If I move well, I play well.

There is no way around the hard work. Embrace it.

When they [court announcers] say, 'This is the world No. 2,' it just doesn't sound right to me because either I'm No. 1 or I'm a grand slam champion. I'm not world No. 2. I just don't like the ring of it when I'm introduced on court because I've been up there for so, so long.

I am very blessed to be able to play tennis, the sport that I love and very grateful for the opportunities to play in the finals of big events, when the season starts you are on the roll constantly and obliged to be committed to daily routines on and off the court.

My aim over the next few months is that I have a lot of points to defend in Miami and Hamburg, after that I can set my sights on No. 1.

The serve, I was too young and too small and... not enough powerful to have a good serve when I was young, so my forehand was always my signature shot. So I used to always run around my backhand, you know, use my forehand as much as I could, and so that's why I think it's my strength also today, you know.

I definitely need to use my chances when they come because definitely there wont be many.