EQUIPMENT October 2, 2018 15-Year Old Coco Gauff: YOUNGEST WTA Champ Ever!15-year-old Coco Gauff knows there are NO DAYS OFF in her pursuit to become the NEXT Serena Williams. COMMENT with your favorite tennis player! MORE No Days Off → 7-Year-Old Football PRODIGY: → 11-Year-Old Boxing Prodigy: → World’s Fastest BMX…