Having two older brothers is a healthy reminder that you're always closer to the bottom than you are to the top.

I'm just glad to see that Pete (Sampras) shut everyone up last year. That was satisfying. You can't bag on guys like Pete or Tiger (Woods) or Michael Jordan. They can play as long as they want, they can do whatever they want. Nobody should be able to tell them differently.

I used to go to the US Open on my birthdays and sit in the nosebleeds.

Most players who play tennis love the game. But I think you also have to respect it. You want to do everything you can in your power to do your best. And for me, I know I get insane guilt if I go home at the end of the day and don't feel I've done everything I can. If I know I could have done something better, I have this uneasy feeling.

He [Vince Spadea] was about as down and out as you could see from a Top 20 player. Then to claw his way back through the minor leagues and do it the hard way where he wasn't young, wasn't getting wildcards, wasn't getting any help. I guess he decided he was just going to do it.

The only pressure I feel is what I put on myself.

I used to, like, hit for a half hour and then go eat Cheetos the rest of the day, come out and drill forehands. Now I'm really trying to make it happen, being professional, really going for it, and I miss my Cheetos.