On clay, you know that you have much longer rallies, and you must run for maybe two or three hours.

Serena, for me, is one of the best players in the world. She is a great person and a great champion.

When I was a kid, I was always dreaming to one day be the No. 1 player in the world, to win Grand Slams.

My dream was always to win a grand slam, and my second dream was to be No. 1.

Now I can say I'm a Grand Slam champion, and it sounds really crazy.