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DUBAI, UNITED ARAB EMIRATES - FEBRUARY 25: Ekaterina Makarova of Russia and Elena Vesnina of Russia celebrate with the trophies after winning the final match against Andrea Hlavackova of Czech Republic and Shuai Peng of China on day seven of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 25, 2017 in Dubai, United Arab Emirates. (Photo by Tom Dulat/Getty Images)

DUBAI, UNITED ARAB EMIRATES - FEBRUARY 25: Ekaterina Makarova of Russia and Elena Vesnina of Russia celebrate with the trophies after winning the final match against Andrea Hlavackova of Czech Republic and Shuai Peng of China on day seven of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 25, 2017 in Dubai, United Arab Emirates.  (Photo by Tom Dulat/Getty Images)

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DUBAI, UNITED ARAB EMIRATES - FEBRUARY 25: Ekaterina Makarova of Russia and Elena Vesnina of Russia celebrate winning the final match against Andrea Hlavackova of Czech Republic and Shuai Peng of China on day seven of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 25, 2017 in Dubai, United Arab Emirates. (Photo by Tom Dulat/Getty Images)

DUBAI, UNITED ARAB EMIRATES - FEBRUARY 25:  Ekaterina Makarova of Russia and Elena Vesnina of Russia celebrate winning the final match against Andrea Hlavackova of Czech Republic and Shuai Peng of China on day seven of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 25, 2017 in Dubai, United Arab Emirates.  (Photo by Tom Dulat/Getty Images)

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DUBAI, UNITED ARAB EMIRATES - FEBRUARY 25: Ekaterina Makarova of Russia and Elena Vesnina of Russia celebrate a point during their final match against Andrea Hlavackova of Czech Republic and Shuai Peng of China on day seven of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 25, 2017 in Dubai, United Arab Emirates. (Photo by Tom Dulat/Getty Images)

DUBAI, UNITED ARAB EMIRATES - FEBRUARY 25:  Ekaterina Makarova of Russia and Elena Vesnina of Russia celebrate a point during their final match against Andrea Hlavackova of Czech Republic and Shuai Peng of China on day seven of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 25, 2017 in Dubai, United Arab Emirates.  (Photo by Tom Dulat/Getty Images)

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DUBAI, UNITED ARAB EMIRATES - FEBRUARY 25: Ekaterina Makarova of Russia and Elena Vesnina of Russia in action during their final match against Andrea Hlavackova of Czech Republic and Shuai Peng of China on day seven of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 25, 2017 in Dubai, United Arab Emirates. (Photo by Tom Dulat/Getty Images)

DUBAI, UNITED ARAB EMIRATES - FEBRUARY 25:  Ekaterina Makarova of Russia and Elena Vesnina of Russia in action during their final match against Andrea Hlavackova of Czech Republic and Shuai Peng of China on day seven of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 25, 2017 in Dubai, United Arab Emirates.  (Photo by Tom Dulat/Getty Images)

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DUBAI, UNITED ARAB EMIRATES - FEBRUARY 25: Ekaterina Makarova of Russia and Elena Vesnina of Russia discuss tactics in their final match against Andrea Hlavackova of Czech Republic and Shuai Peng of China on day seven of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 25, 2017 in Dubai, United Arab Emirates. (Photo by Tom Dulat/Getty Images)

DUBAI, UNITED ARAB EMIRATES - FEBRUARY 25:  Ekaterina Makarova of Russia and Elena Vesnina of Russia discuss tactics in their final match against Andrea Hlavackova of Czech Republic and Shuai Peng of China on day seven of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 25, 2017 in Dubai, United Arab Emirates.  (Photo by Tom Dulat/Getty Images)