50 Moments That Mattered: @clijsterskim returned to Flushing Meadows in 2009 after the birth of her first child, winning the #USOpen title and rising to the top of the sport once again in her illustrious career. _ #USOpen50 #tennis #instatennis #throwback #flushingmeadows #memories #champion #kimclijsters #belgium #wta #instamemories