STUTTGART, Germany (AP) " Results Friday in the Porsche Grand Prix:

Maria Sharapova, Russia, def. Anett Kontaveit, Estonia, 6-3, 6-4.

Kristina Mladenovic, France, def. Carla Suarez Navarro, Spain, 6-3, 6-2.

Laura Siegemund, Germany, def. Karolina Pliskova (2), Czech Republic, 7-6 (3), 5-7, 6-3.

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Simona Halep (4), Romania, def. Anastasija Sevastova, Latvia, 6-3, 6-1.