Many books have been written about what the X-factor is, what separates people who win big matches versus those who struggle. Some of it's innate, but there's a piece of it that's learned, embracing those moments.

I knew I was the second-best tennis player in the state of Florida and No. 8 in the United States of America when I was 12 years old and I couldn't tell you what I was in baseball, but I liked my chances in tennis of getting a scholarship to college.

We have a lot of options. America is a great country.

Without a doubt, there's huge satisfaction when a relatively smaller nation can take on a bigger nation and defeat them. There's a lot of pride in that.

America is the world's policemen, whether you and I like that or not. That's a fact. People globally feel that.

You can look directly at the NFL and see how successful they've become because they have central control, central voice, and it doesn't mean that the owners don't have a say, but the commissioner runs it, and he's the one who speaks for them when they go out and do commercial deals.

If you don't want to practice, unless you have a hard-nosed coach, you don't have to.