When you come back strong, you are going to have little nagging things that you can usually play through, but every now and again, it is to the point where you can't play.

Throughout my career, my mind rarely wandered, and I was never sidetracked by distractions, no matter what I was going through off the court.

I made it look so easy on court all those years. No one realized how hard I had to work. No one realized how much I had to put into it. They underestimated my intensity.

For so long people have just taken what I do for granted. It is not easy to do year-in, year-out, to win Grand Slams and be No. 1.

In tennis, you can make a couple of mistakes and still win. Not in golf. I played three rounds in that Tahoe event, and I was drained. Mentally, not physically.

Tennis is seen all around the world; if I am home or anywhere in the country, United States, people will stare.

It's not my place to tell you whom to vote for, to take any political stand, to tell you what religion to believe in. I'm an athlete. I can influence certain things, but when I see other athletes and celebrities telling you whom to vote for, I actually get a bit offended.