MELBOURNE, AUSTRALIA - JANUARY 09: Maria Sharapova of Russia serves during a practice session ahead of the 2013 Australian Open at Melbourne Park on January 9, 2013 in Melbourne, Australia. (Photo ... more 

MELBOURNE, AUSTRALIA - JANUARY 09: Maria Sharapova of Russia serves during a practice session ahead of the 2013 Australian Open at Melbourne Park on January 9, 2013 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images) less