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.

There were many occasions in my career where I could have given up, where I asked myself whether I would ever make it.

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

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

The day I stop feeling the pressure and I'm just enjoying myself and taking it easy is when I'm 35, asking for a wild card and playing mixed doubles with Arnaud Clement.

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.

It took me time to adjust and to realise it was not going to happen like it did in the juniors.