Stosur 's ranking rose to number 5 , despite her early loss at the Australian Open .
Stosur was seeded fifth at the 2011 Australian Open , where she lost in the third round to 25th seed Petra Kvitova .
Stosur 's ranking rose to number 5 , despite Stosur 's early loss at the Australian Open .
Stosur was seeded fifth at the 2011 Australian Open , where she lost in the third round to 25th seed Petra Kvitova .