No one changes the world who isn't obsessed.

The trouble with being number one in the world - in anything - is that it takes a certain mentality to attain that position, and that is something of a driving, perfectionist attitude, so that once you do achieve number one, you don't relax and enjoy

We have the great fortune of having the best two players in the world with Serena and Venus. As they demonstrated with some tremendous wins at the Australian Open, they are both playing top-level tennis.

The home of the U.S. Open is the largest public tennis facility in the world and operates almost year-round. It has 45 courts, including a great indoor setup, and all of the famed outdoor courts where the current greats of the game do battle. The center runs a number of programs for players of all ages and playing levels — it's great to drop in and pick up a game.

No one changes the world who isn't obsessed.

I think younger players probably just think they are who they are-they don't think about coming out. Unless you're number one in the world, nobody cares, usually.