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MELBOURNE, AUSTRALIA - JANUARY 29: Rafael Nadal of Spain serves in his Men's Final match against Roger Federer of Switzerland on day 14 of the 2017 Australian Open at Melbourne Park on January 29, 2017 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 29:  Rafael Nadal of Spain serves in his Men's Final match against Roger Federer of Switzerland on day 14 of the 2017 Australian Open at Melbourne Park on January 29, 2017 in Melbourne, Australia.  (Photo by Quinn Rooney/Getty Images)