Two-time US Open champion Naomi Osaka revealed she has been dealing with a nagging Achilles injury since the grass season after overcoming Elise Mertens in the third round. Osaka needed a medical timeout but fought back to reach the pre-quarterfinals
The second-seeded pairing of Hseih and Mertens beat 11th seeded Jelena Ostapenko of Latvia and Lyudmyla Kichenok of Ukraine 6-1 7-5 in Sunday's final. It was Hseih's seventh Grand Slam women's doubles title and Mertens' fourth, their second together.