100 Quotes by Jack Sock

When you're No. 8 in the world, then you start losing some matches, I think it was the first time in my career my confidence went down, and from there it was a downward spiral.

To play with one of the greatest doubles players of all time in Mike Bryan was super-fun.

I can count on one hand and maybe a couple of fingers on another the number of players I'll keep in touch with after my playing career is over.

Traveling so much to tournaments, you get behind in school work.

When you're watching college tennis and you're in that close match, there's nothing better.

Against Rafa or Roger or Novak, it's about getting over that intimidation, believing you deserve a chance to take them out.

I'm a shoe geek.

The goal for the top American isn't the top twenty - it's top ten, top five, number one in the world.

Any time you can play in front of home fans and the electric crowds in the U.S., it's always a blast.