Just like many tennis fans, Coco Gauff's father expects a lot from his precocious, 15-year-old daughter. Makes sense, given the way she swings a racket on a tennis court and handles herself away from one. "Even after I win a tournament, he'll let me celebrate, but then he's like, 'It's back to work.' And I understand why," Gauff said.Read more on NewsOK.com