Serena, for me, is one of the best players in the world. She is a great person and a great champion.
On clay, you know that you have much longer rallies, and you must run for maybe two or three hours.
When I was a kid, I was always dreaming to one day be the No. 1 player in the world, to win Grand Slams.
Of course it's tough to reach the number one place and also winning 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.
