No.1 Caroline Wozniacki beats world No.1 Caroline Wozniacki on her return from injury . 6 -time Clijsters , U.S. Open champion in 2005 , 2009 and 2010 , has been out for almost four months after sustaining a stomach muscle injury in August . grand slam winner Clijsters scored a Four -2 7-6 ( 7-5 ) success . The pair faced each other in an exhibition match in Antwerp , Belgium on Thursday . Sweden 's No.1 Caroline Wozniacki will miss January 's Australian Open due to long-term illness .
No.1 Caroline Wozniacki beats world No.1 Caroline Wozniacki on her return from injury . 6 -time grand slam winner Clijsters scored a Four -2 7-6 ( 7-5 ) success . The pair faced each other in an exhibition match in Antwerp , Belgium on Thursday . Sweden 's No.1 Caroline Wozniacki will miss January 's Australian Open due to long-term illness .