Top seed Djokovic beats Nishikori in U.S. Open

NEW YORK, Sept. 5 (Xinhua) -- Top-seeded Novak Djokovic defeated world No.56 Kei Nishikori of Japan 6-7, 6-3, 6-3, 6-2 in the third round of the U.S. Open men's singles on Saturday.

The 34-year-old Serbian recovered from a slow start before he won rest of the game smoothly.

"I do not think I started off very well," Djokovic said. "I was too passive. He was dictating the play. I was still trying to find th