KUALA LUMPUR, Malaysia (AP) - Fourth-seeded Peng Shuai retired from her match with a back injury Thursday at the Malaysian Open.
Peng was trailing 5-2 against Magda Linette of Poland when she withdrew.
Linette will next face fifth-seeded Duan Yingying in the quarterfinals. Duan beat Sara Sorribes Tormo of Spain 6-0, 4-6, 7-5.
Also advancing to the quarterfinals were Wang Qiang, Han Xinyun and Ashleigh Barty.
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