By
Rod Laver Arena
11:00 am (0000 GMT)
Angelique Kerber (GER x21) v Madison Keys (USA x17)
Not before 1:00 pm (0200 GMT)
Tennys Sandgren (USA) v Chung Hyeon (KOR)
Not before 3:00 pm (0400 GMT)
Simona Halep (ROM x1) v Karolina Pliskova (CZE x6)
Not before 7:30 pm (0830 GMT)
Tomas Berdych (CZE x19) v Roger Federer (SUI x2)