Coco Gauff showed her resilience and determination as she fought off a tough challenge from fellow American Sachia Vickery to secure a spot in the quarterfinals of the Porsche Grand Prix. Despite facing 19 break points and struggling with her serve, the 15-year-old phenom managed to come out on top after a grueling 2 hour, 26-minute match. Gauff will now face off against another American, Jennifer Brady, in the next round.