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This general view shows the crowd at Rod Laver Arena as Roger Federer of Switzerland plays against Rafael Nadal of Spain in the men's singles final on day 14 of the Australian Open tennis tournament in Melbourne on January 29, 2017. / AFP / SAEED KHAN / IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE (Photo credit should read SAEED KHAN/AFP/Getty Images)

This general view shows the crowd at Rod Laver Arena as Roger Federer of Switzerland plays against Rafael Nadal of Spain in the men's singles final on day 14 of the Australian Open tennis tournament in Melbourne on January 29, 2017. / AFP / SAEED KHAN / IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE        (Photo credit should read SAEED KHAN/AFP/Getty Images)