Having confidence in your physical shape allows your game to get better with it. — Jack Sock Copy Share Image
I think any success you can have on the tennis court, doubles helps. If you're playing on the weekend, you're in the… — Jack Sock Copy Share Image
I don't know if it's underrated or not but I have confidence in my speed and my quickness around the court. — Jack Sock Copy Share Image
When you're No. 8 in the world, then you start losing some matches, I think it was the first time in my… — Jack Sock Copy Share Image
Playing main-draw matches helps, and playing in front of crowds and playing in big matches definitely helps, getting them all under your belt. — Jack Sock Copy Share Image
It starts with family - they've sacrificed so much for me, with my parents moving away from each other when we were young, for… — Jack Sock Copy Share Image
With doubles, I've never really gone out and been like, 'I really want to win this tournament,' or, 'I really want to do well… — Jack Sock Copy Share Image
The more time you spend on tour, around the top guys especially, you see what they do, the work, the preparation, the organization they… — Jack Sock Copy Share Image
I've never considered myself a doubles player. I've just enjoyed playing it. — Jack Sock Copy Share Image
Yeah, definitely on a mission now to compete to try to be winning these tournaments I'm playing. — Jack Sock Copy Share Image
When you are on the court and a guy shanks a ball off the line, and I think it's the end of the world,… — Jack Sock Copy Share Image
Against Rafa or Roger or Novak, it's about getting over that intimidation, believing you deserve a chance to take them out. — Jack Sock Copy Share Image
