Maria Sharapova of Russia serves to Petra Kvitova of the Czech Republic during their semifinal at the Australian Open tennis championship, in Melbourne, Australia, Thursday, Jan. 26, 2012. (AP Photo/Sarah Ivey)
Maria Sharapova of Russia serves to Petra Kvitova of the Czech Republic during their semifinal at the Australian Open tennis championship, in Melbourne, Australia, Thursday, Jan. 26, 2012. (AP Photo/Sarah Ivey)
