Naomi Osaka tosses racket, overcomes test from teenager at US Open
September 05, 2020 10:16 ISTTwo-time Grand Slam champion Osaka eventually figured out a way to turn a tight one into a runaway and beat 18-year-old Marta Kostyuk 6-3, 6-7 (4), 6-2 by claiming the final five games at Flushing Meadows.