Tennis is my life.

I never try to get ahead of myself because there's nothing that bothers me more than cockiness. I don't think that's necessary at all.

If anything, you just let your racket talk - there's no reason for you to talk if your racket can.

Clay... is my favorite surface.

If you stop working hard, that's when things get to your head.

I'm trying to... stay humble and keep doing what I do.

Without my dad doing what he did, and without me putting in the hours, there wouldn't be any travelling the world or playing with the pros. He's a huge part of it.

My goal isn't to be a top junior. It's to be a top pro.

I just wanted to play and play and play. When everyone left, I'd stay on the court and hit serves or play against the wall.

I mean, sometimes you have to go to work.

It doesn't really matter who I turn pro with. What matters is where I take my tennis.

I'm pretty close with a majority of the black tennis players.

Davis Cup helped me a lot. Being in that great atmosphere and having the chance to hit with top 50 guys everyday, being on the practice courts, that gave me a lot of confidence.

From the ground, I'm pretty solid from both sides. My form really helps me a lot and my backend complements it.

I think my serve and trying to come forward a little more are what I need to work on.

You start to take those opportunities when you do get a wildcard, but also you're allowed to say no - just because you get a wildcard doesn't mean you have to say yes. Some weeks I think its OK to take a wildcard, some weeks its not.

All these pros are getting better every day. You just want to catch up to them.

Some days, obviously, I am like 'Today is not the day,' but you got to push through, especially when my aspirations are to be pro, you can't have any bad days.

USTA helps me out a lot, the Tennis Center. I can't thank them enough.

Being the number one seed, you're thinking you don't want to lose in the second round.

Playing in a main draw Grand Slam is something you dream about as a kid.

It's hard to win Grand Slams.

There are a bunch of young players coming up and doing incredible stuff.

Hopefully my era can help build the game.

I don't want to be playing on Court 17 for the rest of my life.

I think Kevin Durant being that humble is huge.

Since I was like eight, I always wanted to be playing pro tennis.

While turning pro had a lot of upside, for me, it could also have turned out to be a disaster.

When I told people that I wanted to grow up to be a tennis player, they laughed at me. My dad has always been supportive, but he was laughing, too.

My mom actively did not want me to play professionally.

I was born into a poor family but my family's good. I'm good and I'm going to do something great.

Serena's arguably the best athlete of all time, so getting to know her was surreal.

It was not until I got sponsored at 12 that I finally owned a racket.

The thing is, everybody wants to be famous. Everybody wants to be successful. Everybody wants to be that dude, but not everybody wants to do the work for it. And I think that's probably one of the reasons why there's so many juniors and only a couple that make it. Because I really wanted it. I wanted it real bad.

I want young kids to play tennis because of me.

I want to really change people's lives with what I do for a living.

People in tennis, they've been in a certain bubble for so long they don't even know who they are, because obviously it's just been tennis, tennis, tennis. And let it be just tennis, tennis, tennis. Be locked into that. But when tennis is done, then what? It's kinda like: Let's enjoy being great at the sport.

My mom, she wanted me to go to college and then after that you could do what you want.

There was always a purpose in what I did on the court because at the end of the day, my parents, they sacrificed for me and my brother. I had to do it for them.

I'm a pretty good problem solver.

I want to win titles like Delray and even bigger.

Love the people that want to support you, love the people who are there for you, because you definitely earned that right.

I don't think our priority should be on immigrants. Obviously, they come to the States for a better life, so the last thing they want to do is rob a bank or do something bad.

You can't forget your roots.

I try to treat everyone with love and respect. If you do that, you get the same back, if not more.

My academy did a great job of getting my story out there for people to hear about me, get interested and wanted to fund me.

I just want to be great.

I've played so many matches in my career so far where I played unbelievable, came up just short.

It's Roger Federer - this guy has about a million Grand Slams and done everything.

I have fun when it's the right time to have fun, but when I lock in for practice and matches, I'm not worried about fun.