STUTTGART, GERMANY - APRIL 20:  Belinda Bencic of Switzerland and Simona Halep of Romania in action during their womens doubles first round match against Chin-Wei Chan of Chinese Taipei and Chen Liang of China on day one of the Porsche Tennis Grand Prix at Porsche-Arena on April 20, 2015 in Stuttgart, Germany.  (Photo by Daniel Kopatsch/Bongarts/Getty Images)