Australian Open serves up history-making treat

The Melbourne skyline is reflected in a window as a tennis racket is strung at the Australian Open tennis tournament, January 13, 2013 (REUTERS)

Victoria Azarenka of Belarus dances with a man dressed as the cartoon character Sponge Bob Square Pants during Kids Tennis Day at the Australian Open tennis tournament in Melbourne, January 12, 2013. (REUTERS)

Heather Watson of Britain hits a return during a practice session at the Australian Open tennis tournament in Melbourne January 12, 2013. (REUTERS)

Maria Sharapova of Russia serves during a practice session at the Australian Open tennis tournament in Melbourne January 13, 2013. (REUTERS)

Bec Hewitt, wife of Lleyton Hewitt of Australia, sits with their children Ava Sydney (C) and Cruz Lleyton (R) during Kids Tennis Day at the Australian Open tennis tournament in Melbourne, January 12, 2013. (REUTERS)

Mirka Federer (R), wife of Roger Federer of Switzerland, sits with their twin girls Myla Rose and Charlene Riva during Kids Tennis Day at the Australian Open tennis tournament in Melbourne, January 12, 2013. (REUTERS)

Roger Federer of Switzerland shares a light moment with a ball girl during Kids Tennis Day at the Australian Open tennis tournament in Melbourne January 12, 2013. (REUTERS)

Roger Federer of Switzerland hits a ball into the back of a man dressed as the cartoon character Sponge Bob Square Pants during Kids Tennis Day at the Australian Open tennis tournament in Melbourne, January 12, 2013. (REUTERS)

Novak Djokovic of Serbia and Serena Williams of the U.S. dance Gangnam Style during the Kids Tennis Day at the Australian Open tennis tournament in Melbourne January 12, 2013. (REUTERS)

Victoria Azarenka of Belarus hits a return during a practice session at the Australian Open tennis tournament in Melbourne January 12, 2013. (REUTERS)

Andy Murray of Britain has his toes strapped during a practice session at the Australian Open tennis tournament in Melbourne January 11, 2013. (REUTERS)

Victoria Azarenka of Belarus hits a return during a practice session at the Australian Open tennis tournament in Melbourne January 11, 2013. (REUTERS)

Victoria Azarenka of Belarus, the 2012 Australian Open women's singles champion, and Novak Djokovic of Serbia, the 2012 Australian Open men's singles champion, pose with their trophies before the official draw of the 2013 Australian Open tennis tournament in Melbourne January 11, 2013. (REUTERS)

Maria Sharapova of Russia hits a return during a practice session at the Australian Open tennis tournament in Melbourne January 11, 2013. (REUTERS)

Venus Williams of the U.S. hits a return during a practice session at the Australian Open tennis tournament in Melbourne January 11, 2013. (REUTERS)

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