I am there to play tennis and represent the U.S., but I'm also aware that not everyone's going to be able to think that way.

I will do everything in my power to make sure people are aware that our team is out there fighting the good fight for the tennis fans of the United States.

Getting to number one in the world without a coach is highly unlikely.

You can kick a ball into the net, throw a basketball into the net. Tennis is complicated. It'll make a lot of great athletes run the other way because they can't be successful initially.

Even the poor can be fat in the U.S.

Hell be lucky to last five or six years on those knees. What it might have to come down to is playing less on hard surfaces and playing more on forgiving surfaces.

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.