NEW YORK (Reuters) - Japan's Kei Nishikori and Croatia's Marin Cilic rocked the tennis world with stunning back-to-back U.S. Open semi-final upsets on Saturday, sending two all-time greats Roger Federer and Novak Djokovic out of Flushing Meadows.
On an extraordinary day that will go down as one of the most surprising in grand slam history, 10th seeded Nishikori denied Djokovic a fifth straight trip to the U.S. Open final when he toppled the world number one 6-4 1-6 7-6(4) 6-3 on a sweltering Arthur Ashe Stadium court.