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MELBOURNE, VIC - JANUARY 27: Rafael Nadal of Spain falls to his knees after winning his semi final against Grigor Dimitrov of Bulgaria during the 2017 Australian Open on January 27, 2017, at Melbourne Park Tennis Centre in Melbourne, Australia.(Photo by Jason Heidrich/Icon Sportswire via Getty Images)

MELBOURNE, VIC - JANUARY 27: Rafael Nadal of Spain falls to his knees after winning his semi final against Grigor Dimitrov of Bulgaria during the 2017 Australian Open on January 27, 2017, at Melbourne Park Tennis Centre in Melbourne, Australia.(Photo by Jason Heidrich/Icon Sportswire via Getty Images)