Meet Cori 'Coco' Gauff, the 15-year-old who beat Venus Williams 0 4 03 Jul 2019 17:21 USATODAY (Sports Top Stories) Cori 'Coco' Gauff opened a lot of eyes when she toppled Venus Williams at Wimbledon, but you shouldn't be surprised that the 15-year-old is taking tennis by storm.