SINGAPORE - OCTOBER 21: Madison Keys of the United States, Dominika Cibulkova of Slovakia, Karolina Pliskova of Czech Republic, Agnieszka Radwanska of Poland, Johanna Konta of Great Britain, Angelique Kerber of Germany, Simona Halep of Romania and Garbine Muguruza of Spain pose for a selfie prior to the BNP Paribas WTA Finals Singapore at Merlion Park on October 21, 2016 in Singapore. (Photo by Julian Finney/Getty Images)
