STUTTGART, GERMANY - APRIL 26:  Bethanie Mattek-Sands of the United States and Lucie Safarova of Czech Republic celebrate after their victory in their doubles final match against Caroline Garcia of France and Katarina Srebotnik of Slovenia during Day 7 of the Porsche Tennis Grand Prix on April 26, 2015 in Stuttgart, Germany.  (Photo by Dennis Grombkowski/Bongarts/Getty Images)