Wawrinka beats Chardy to reach Rosmalen semifinals
In the women's draw, Dominika Cibulkova lost 6-4, 6-4 to Garbine Muguruza. Simona Halep defeated Lesia Tsurenko 6-3, 6-1 to set up a semifinal with Carla Suarez Navarro, who rallied past Tsvetana Pironkova 2-6, 6-4, 6-4.
Wawrinka lost his service in the first game of the second set before Chardy reeled off three straight service games at love to reach 5-3.
Flipkens was up 3-2 in the second set when she called for a medical timeout and received treatment on her back.
Copyright 2013 by The Associated Press
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