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Caroline Wozniacki Pictures
SINGAPORE - OCTOBER 23: Caroline Wozniacki of Denmark reacts to match point in her singles match with Petra Kvitova of the Czech Republic prior to their singles match during day 3 of the BNP Paribas WTA Finals Singapore presented by SC Global at Singapore Sports Hub on October 23, 2018 in Singapore. (Photo by Matthew Stockman/Getty Images)