15-year-old American Coco Gauff proved her star power by passing her toughest test to date in yet another extraordinary Wimbledon thriller

12:29pm PDT - July 5th, 2019    coco gauff - Business Insider

Cori Gauff overcame an early setback to beat Polona Hercog two sets to one in an extraordinary third round thriller at the Wimbledon Championships on Friday. Gauff is a 15-year-old American who has been taking the All England Club by storm, swatting aside Ven…