By January 15, 2013 4:53 pm ET

Maria Sharapova of Russia hits a return during a practice session for the upcoming Australian Open tennis tournament in Melbourne on January 10, 2013. The first Grand Slam tennis tournament of the year is set to run from January 14 to 27. AFP PHOTO / Paul CROCK IMAGE STRICTLY RESTRICTED TO EDITORIAL USE – STRICTLY NO COMMERCIAL USE (Photo credit should read PAUL CROCK/AFP/Getty Images)