Another factor is the education and culture in which you grow up. I didn't grow up in the culture of victory, where you are expected to be or have to be, the best. It was not at all like that in my family. Tennis was really a hobby. If it led to something, great. If not, there were other things in life. I think that was something I was missing at some points in my career, because when I see Hingis or the Williamses, you see how they were educated for this: to win, to be the best, a bit the American mentality. Number one. Number one. Number one. I didn't have this.

If you are not physically strong, it's difficult. But at the same time, I think you need something more than that; you need to vary your shots, as Justine has been able to do in Amelia or Charleston, where she beat her -- I can't remember where it was on clay. So you need this kind of thing. But of course if you're not fit, you'll never make it through.

I think you always have, you know, new players. Every year you see new faces, juniors coming into the seniors. I was one of them at the time long time ago now.

The more kilos you have to move around, the more it weighs on your knees. Then of course in terms of stamina, the way you move around, it's a little extra. It might not be much, but when you exercise with two, three extra kilos, you can feel a difference; it's important.

Whether it's in the right way or sometimes the wrong way, you learn about life and its lessons.

Well, I guess I needed this tough first round to really put me into that tournament, to really erase what happened at Indian Wells, which is now the case, you know.

Unlike in my young days I'm not able to eat, drink and sleep tennis.