SummerSlam ( 2009 ) was a professional wrestling pay-per-view event produced by World Wrestling Entertainment ( WWE ) , which took place on August 23 , 2009 at Staples Center in Los Angeles , California . SummerSlam ( 2009 ) was a professional wrestling pay-per-view ( PPV ) event produced by World Wrestling Entertainment ( WWE ) , which took place on August 23 , 2009 at Staples Center in Los Angeles , California .