Gulbis began the year strong , so the outspoken Latvian 's win was hardly as surprising as those of Sergiy Stakhovsky and Tommy Robredo against Federer in London and New York last year . Tennis ' grand slams came to an end this year when Marin Cilic won the U.S. Open . The Serbian was a surprise winner in straight sets over Roger Federer and Rafael Nadal on Sunday at Flushing Meadows. But injuries may have played a part , especially for Spain 's Rafael Nadal . Maria Sharapova prospered on the clay in Paris but struggled elsewhere at majors .
Tennis ' grand slams came to an end this year when Marin Cilic won the U.S. Open . The Serbian was a surprise winner in straight sets over Roger Federer and Rafael Nadal on Sunday at Flushing Meadows. But injuries may have played a part , especially for Spain 's Rafael Nadal . Maria Sharapova prospered on the clay in Paris but struggled elsewhere at majors .