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MADRID, SPAIN - MAY 09: Petra Kvitova of Czech Republic in action against Svetlana Kuznetsova of Russia in the final during day eight of the Mutua Madrid Open tennis tournament at the Caja Magica on May 9, 2015 in Madrid, Spain. (Photo by Julian Finney/Getty Images)

MADRID, SPAIN - MAY 09:  Petra Kvitova of Czech Republic in action against Svetlana Kuznetsova of Russia in the final during day eight of the Mutua Madrid Open tennis tournament at the Caja Magica on May 9, 2015 in Madrid, Spain.  (Photo by Julian Finney/Getty Images)