I think business is the same as tennis. You have to have the love, that helps, or else it's just too much pressure to be able to keep up with.

There were a lot of people shouting out. I know it's not proper tennis etiquette, but this is the first time I've ever played here that the crowd has been behind me like that. Today I felt American, you know, for the first time at the U.S. Open. So I've waited my whole career to have this moment and here it is. ... It was great. It was awesome. It was like winning gold.

I truly believe that whoever feels the most confident is usually the one to win.

I'm this overachiever type, I'll just work and work and I'll just do it over and over and over again.

Unfortunately the world is what it is now. People don't get along for whatever reason. As professional athletes, in a way we're almost ambassadors for peace, because sports brings everyone together.

We're all conditioned that we shouldn't like our brothers and sisters, that we should be angry and fight. But that's abnormal. A lot of people think that the way Serena and I are with one another is weird. It's not.

I have been recently diagnosed with Sjogren's Syndrome, an autoimmune disease which is an ongoing medical condition that affects my energy level and causes fatigue and joint pain.