I was glad to watch the soccer because it helps my tennis game, realize maybe they're just rooting for the underdog.

I have started to realize that I am really just a world athlete and a world entertainer -- I am a world-known person, I am a global icon.

Having a pulmonary embolism is definitely easier than heart break.

I just could never have imagined that I would be mentioned with Chris Evert or with Martina Navratilova, because I was just a kid with a dream and a racquet. Living in Compton, you know, this never happened before.

I love metaphors. I've never been on this train. ... If I'm standing on the middle of a track, I'm definitely going to get derailed. I have to make sure that I'm on the train and not in front of it.

I've always made some legendary comebacks since 1998 when it first started. So that's kind of just been my MO for my whole career.

If I'm not playing well, I do get down on myself because I am a perfectionist. [So I need] someone who believes in me more than I believe in me, someone willing to work as hard as I work. I don't understand what no means or what failure means; I only understand what yes means and try again means.