I had a hunch that Stosur would go out to Zheng. Good for V.Willias to get through. She seems to be feeling better & to enjoying the challenge again. I can't remember what she did at the USO or even if she played it, but I saw her at Wimbledon & she looked unsettled & as though she'd prefer to be elsewhere.
It's nice to see Heather Watson through!

This list of results may not be complete:
Results for day 3 - 16th January :Maria Sharapova (2) defeated Misaki Doi; 6-0, 6-0
Agnieszka Radwanska (4) defeated Irina-Camelia Begu; 6-3, 6-3
Angelique Kerber (5) defeated Lucie Hradecka; 6-3, 6-1
Li Na (6) defeated Olga Govortsova; 6-2, 7-5
Jie Zheng defeated Samantha Stosur (9); 6-4, 1-6, 7-5
Marion Bartoli (11) defeated Vesna Dolonc; 7-5, 6-0
Ana Ivanovic (13) defeated Yung-Jan Chan; 7-5, 1-6, 6-4
Valeria Savinykh defeated Dominika Cilbulkova (15); 7-6 (8-6), 6-4
Julia Goerges (18) defeated Romina Oprandi; 6-3, 6-2
Ekaterina Makarova (19) defeated Stephanie Foretz Gacon; 6-3, 6-3
Jelena Jankovic (22) defeated Maria Joao Koehler; 2-6, 7-6 (7-5), 6-2
Kirsten Flipkens defeated Klara Zakopalova (23); 6-1, 6-0
Venus Williams (25) defeated Alize Cornet; 6-3, 6-3
Sorana Cirstea (27) defeated Kristyna Pliskova; 1-6, 6-3, 6-2
Madison Keys defeated Tamira Paszek (30); 6-2, 6-1
Heather Watson defeated Ksenia Pervak; 4-6, 7-6 (9-7), 6-2
Schedule of play for day 4, the 17th January:http://www.australianopen.com/en_AU/scores/schedule/index.html