Naomi Osaka is a Japanese professional tennis player. She was ranked as the world No. 1 in women's singles by the WTA for 25 weeks starting in January 2019, the first Asian player to hold the top ranking in singles. From Wikipedia
Gauff frames the change as a long‑term fix for a double‑fault‑plagued serve by turning to the biomechanist credited with reviving Aryna Sabalenka’s delivery.
