The U.S. Open will be the final grand slam of Kim Clijsters ' career . The Belgian has won at Flushing Meadows three times in the last four years . Clijsters took the tournament as a pro in 2009 after coming out of retirement . The 31-year - old also claimed the title in 2009 and 2010 , but has struggled with injuries recently .
The U.S. Open will be the final grand slam of Kim Clijsters ' career . The Belgian has won at Flushing Meadows three times in the last six years . Clijsters took the tournament as a wildcard in 2009 after coming out of retirement . The 31-year-old also claimed the title in 2005 and 2010 , but has struggled with injuries recently .