US Open 2018: Rafael Nadal vs Juan Martin del Potro, Novak Djokovic vs Kei Nishikori in semifinals
September 07, 2018 9:06 ISTAll four players have reached the U.S. Open final while only Nishikori hasn't won it to make this the first Grand Slam final four since the 2012 Australian Open in which all four players were past finalists.