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

I do understand that when someone gives you a [expletive] load of money, you take that money. Someone like Larry Ellison wants to invest into his event and make it the biggest possible, and he gets stopped by the ATP. If you're a start-up, what would make you want to navigate through that and to go through that firing line? How can you step into tennis with any confidence? It's the stupidest thing I've ever heard of.

I enjoy hitting tennis balls. I haven't lost any of the innocent parts of tennis. I just do it in front of less people.

I like grass, I enjoy it and it suits my game.

I don't know that I've ever been someone who's interested in existing on tour. I have a lot of interests and a lot of other things that excite me.

I still don't believe I won the U.S. Open. It's so far-fetched for me.

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.