Defending champion Kim Clijsters withdrew from the US Open on Friday because of a stomach muscle injury.
“Unfortunately, I will not be able to defend my US Open title this year because of a stomach muscle injury (left rectus abdominus strain),” said the Belgian.
“Two weeks of rehab was not enough to heal this injury. Obviously I’m very disappointed. I trained very hard this summer and felt in a good shape to play the US Open.”
Kim Clijsters currently has a 21 match winning streak at Flushing Meadows, having won the tournament in 2005 – as well as on her return from her retirement in both 2009 and 2010.
Whether she will continue her record in 2012 remains to be seen.