No.1 seeds Katerina Siniakova and Taylor Townsend battled past No.3 seeds Hsieh Su-wei and Jelena Ostapenko 6-2, 6-7(4), 6-3 in a gripping final on Sunday to clinch the women's doubles title at the Australian Open. Siniakova and Townsend, the Czech-American pair lived up to their top-seeded billing on Rod Laver Arena.