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Halep lost the first set 6-1 to Tunisia's Ons Jabeur before retiring with a back injury that she also had problems with at last week's Wuhan Open.

By Associated Press
September 30, 2018

BEIJING — Top-ranked Simona Halep retired Sunday from her first-round match at the China Open.

Halep lost the first set 6-1 to Tunisia's Ons Jabeur before retiring with a back injury that she also had problems with at last week's Wuhan Open.

It's the fourth straight loss for the defending French Open champion.

Third-seeded Angelique Kerber of Germany cruised past Kristina Mladenovic 6-2, 6-2 to reach the second round. The Wimbledon champion broke Mladenovic four times to extend her perfect record in opening-round matches at Beijing to nine.

Defending champion Caroline Garcia of France survived an early scare against Chinese wildcard Wang Yafan to win 7-6 (10), 6-7 (4), 6-3.

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Americans Madison Keys and Sloane Stephens both won their matches to advance, while CoCo Vandeweghe was beaten by Slovenian qualifier Polona Hercog 6-2, 6-1.

Laura Siegemund defeated No. 13 Daria Kasatkina 6-3, 4-2 after Kasatkina retired with gastrointestinal illness.

Timea Babos, Zheng Saisai, Lesla Tsurenko, Dominika Cibulkova and Kirsten Flipkens also advanced.

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HOLE YARDS PAR R1 R2 R3 R4
OUT
HOLE YARDS PAR R1 R2 R3 R4
IN
Eagle (-2)
Birdie (-1)
Bogey (+1)
Double Bogey (+2)