Melbourne (AFP) - Results on day four of the Australian Open at Melbourne Park on Wednesday (x denotes seeding):

Men’s singles

2nd round

Tommy Paul (USA x19) bt Thiago Tirante (ARG) 6-3, 6-4, 6-2

Francisco Cerundolo (ARG x18) bt Damir Dzumhur (BIH) 6-3, 6-2, 6-1

Fabian Marozsan (HUN) bt Kamil Majchrzak (POL) 6-3, 6-4, 7-6 (⁷⁄₅)

Women’s singles

2nd round

Aryna Sabalenka (BLR x1) bt Bai Zhuoxuan (CHN) 6-3, 6-1

Zeynep Sonmez (TUR) bt Anna Bondar (HUN) 6-2, 6-4

Elina Svitolina (UKR x12) bt Linda Klimovicova (POL) 7-5, 6-1

Diana Shnaider (RUS x23) bt Talia Gibson (AUS) 3-6, 7-5, 6-3