It's silly to say it about a tennis player, but I'm an unbelievable hero in Germany. And Germany needs heroes more than any place.

Because I was a tennis player, Billie Jean King was a hero of mine.

My favorite tennis player, who I'm amazed by, is Roger Federer.

Relationships are give-and-take, and when you're a tennis player, you're certainly not giving. You have to be self-absorbed. It has to be about you.

Everyone needs a coach. It doesn't matter whether you're a basketball player, a tennis player, a gymnast or a bridge player.

I'm actually a pretty good tennis player!