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MELBOURNE, VIC - JANUARY 20: Roger Federer of Switzerland celebrates winning his third round match of the 2017 Australian Open on January 20, 2017, at Melbourne Park Tennis Centre in Melbourne, Australia.(Photo by Jason Heidrich/Icon Sportswire via Getty Images)

MELBOURNE, VIC - JANUARY 20: Roger Federer of Switzerland celebrates winning his third round match of the 2017 Australian Open on January 20, 2017, at Melbourne Park Tennis Centre in Melbourne, Australia.(Photo by Jason Heidrich/Icon Sportswire via Getty Images)