Coco Gauff took a science test just before trying to qualify for Wimbledon. She’s now an international sensation

(CNN)Before her sensational debut in Wimbledon’s main draw, 15-year-old American tennis player Cori “Coco” Gauff had to win some qualifying matches just to get there. READ: Gauff signs multi-year sponsorship contract She says only one of her teachers even knew she played tennis. The rest will know now. “I ended up getting a B on the exam, which was pretty good, considering I took it at 11 at night and I have to wake up the next day for a match,” Gauff told CNN’s Christina Macfarlane on Saturday, two days before she’d play Williams. “After my science test, I guess some of my teachers saw (an) interview. Before that … only one teacher knew I play tennis, and I don’t …