Pliskova and Zhang progress
Defending champion Karolina Pliskova eased into the second round of the BMW Malaysian Open in Kuala Lumpur.
The Czech third seed, who won the only WTA Tour title of her career here 12 months ago, defeated Aleksandra Krunic 6-2 6-2.
Second seed Zhang Shuai is also through but she had a much tougher time against Chinese compatriot Zheng Saisai before coming through 2-6 6-2 6-2.
Seventh seed Donna Vekic, 17, defeated Chan Yung-jan 3-6 6-4 6-1 but 43-year-old Kimiko Date-Krumm was forced to pull out when trailing Cagla Buyukakcay 5-3.
Eighth seed Ayumi Morita was 5-2 behind against Lyudmyla Kichenok when rain brought an early end to play on Monday and the Ukrainian maintained her advantage to win 6-4 6-2.
Sixth seed Zarina Diyas continued her fine start to the year by beating Elenu Daniilidou 6-2 6-2 and there were also wins for Hsieh Su-wei and Kristyna Pliskova.