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MELBOURNE, AUSTRALIA - JANUARY 19: Rafael Nadal of Spain prepares to serve in his first round match against Fernando Verdasco of Spain during day two of the 2016 Australian Open at Melbourne Park on January 19, 2016 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 19:  Rafael Nadal of Spain prepares to serve in his first round match against Fernando Verdasco of Spain during day two of the 2016 Australian Open at Melbourne Park on January 19, 2016 in Melbourne, Australia.  (Photo by Michael Dodge/Getty Images)