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BRISBANE, AUSTRALIA - JANUARY 07: Thanasi Kokkinakis of Australia plays a backhand during his doubles match partnered with Jordan Thompson against Daniel Nestor and Edouard Roger-Vasselin during day seven of the 2017 Brisbane International at Pat Rafter Arena on January 7, 2017 in Brisbane, Australia. (Photo by Chris Hyde/Getty Images)

BRISBANE, AUSTRALIA - JANUARY 07:  Thanasi Kokkinakis of Australia plays a backhand during his doubles match partnered with Jordan Thompson against Daniel Nestor and Edouard Roger-Vasselin during day seven of the 2017 Brisbane International at Pat Rafter Arena on January 7, 2017 in Brisbane, Australia.  (Photo by Chris Hyde/Getty Images)