Ashleigh Barty survived the challenge of Alison Riske, but Coco Gauff's Australian Open campaign was ended by Sofia Kenin.
Now 38 and surprisingly dumped out of the Australian Open, Serena Williams says she will continue her pursuit of a 24th grand slam crown.
After a surprise loss at the Australian Open, Serena Williams said such defeats still hurt.
Serena Williams crushed Wang Qiang at the US Open but the Chinese world number 29 was confident of exacting revenge in Melbourne.
Wang Qiang caused a huge upset by stunning Serena Williams in the Australian Open third round.
We take a closer look at Serena Williams' form ahead of her Australian Open clash against Qiang Wang.
Wang Yafan produced an impressive display to beat Tianjin Open defending champion Caroline Garcia in straight sets.
Tianjin Open seeds Wang Qiang and Dayana Yastremska moved into round two, with Saisai Zheng beating regular doubles partner Ying-Ying Duan.
Wang Qiang succumbed to a first-round loss against Shuai Peng, but Elina Svitolina coasted through at the Guangzhou Open.
Serena Williams celebrated her 100th US Open win on Tuesday and then conceded she is unable to recall her first.