2023 US Open scores: Coco Gauff becomes youngest American to reach final since Serena Williams in 1999 | CBS Sports Headlines 2023 US Open scores: Coco Gauff becomes youngest American to reach final since Serena Williams in 1999 Coco Guaff, 19, defeats Karolina Muchova to advance to her second Grand … Continue reading 2023 US Open scores: Coco Gauff becomes youngest American to reach final since Serena Williams in 1999