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AUCKLAND, NEW ZEALAND - JANUARY 05: Mandy Minella of Luxembourg serves against Anna Tatishvili of USA during day one of the 2015 ASB Classic at ASB Tennis Centre on January 5, 2015 in Auckland, New Zealand. (Photo by Anthony Au-Yeung/Getty Images)

AUCKLAND, NEW ZEALAND - JANUARY 05: Mandy Minella of Luxembourg serves against Anna Tatishvili of USA during day one of the 2015 ASB Classic at ASB Tennis Centre on January 5, 2015 in Auckland, New Zealand.  (Photo by Anthony Au-Yeung/Getty Images)