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Russia's Maria Sharapova celebrates after defeating Serbia's Ana Ivanovic in the final match of the WTA Porsche Tennis Grand Prix in Stuttgart, southwestern Germany, on April 27, 2014. Sharapova won 3-6,6-4,6-1. AFP PHOTO / THOMAS KIENZLE (Photo credit should read THOMAS KIENZLE/AFP/Getty Images)

Russia's Maria Sharapova celebrates after defeating Serbia's Ana Ivanovic in the final match of the WTA Porsche Tennis Grand Prix in Stuttgart, southwestern Germany, on April 27, 2014. Sharapova  won 3-6,6-4,6-1. AFP PHOTO / THOMAS KIENZLE        (Photo credit should read THOMAS KIENZLE/AFP/Getty Images)