100 Quotes by Jack Sock

If I double-fault or I miss a shot I don't think I should miss, instead of getting more upset, I can think back to the tough times that my brother went through or trying to make my grandpa proud.

I want to win singles titles.

Playing main-draw matches helps, and playing in front of crowds and playing in big matches definitely helps, getting them all under your belt.

In the offseason, you can definitely get after it a little more. You can have very intense workouts and not have to worry about a match coming up in a day or two or in the next week.

It starts with family - they've sacrificed so much for me, with my parents moving away from each other when we were young, for tennis.

I'm entering tournaments every week trying to win.

When I was the young guy on tour, I don't think I really grasped what it actually takes to be at this level.

The more time you spend on tour, around the top guys especially, you see what they do, the work, the preparation, the organization they have going into their training. It all leads up to playing great tennis. It really opens your eyes.

How many players can say they're the best in their country? But it's not a goal I ever thought about.