Naomi Osaka claimed the biggest title of her career as she defeated fellow 20-year-old Daria Kasatkina 6-3 6-2 in the BNP Paribas Open final at Indian Wells.
Naomi Osaka claimed the biggest title of her career as she defeated fellow 20-year-old Daria Kasatkina 6-3 6-2 in the BNP Paribas Open final at Indian Wells.