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MELBOURNE, AUSTRALIA - JANUARY 23: Andreas Seppi of Italy celebrates winning his third round match against Roger Federer of Switzerland during day five of the 2015 Australian Open at Melbourne Park on January 23, 2015 in Melbourne, Australia. (Photo by Patrick Scala/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 23:  Andreas Seppi of Italy celebrates winning his third round match against Roger Federer of Switzerland during day five of the 2015 Australian Open at Melbourne Park on January 23, 2015 in Melbourne, Australia.  (Photo by Patrick Scala/Getty Images)