Nishikori recovers from early wobble in New York

Kei Nishikori bounced back from an early blow to progress to the fourth round of the US Open thanks to a 4-6, 6-1, 6-2, 6-2 victory of Nicolas Mahut.

The sixth seed, who is now 11-1 against Frenchman this year, lost the first set on the back of a lone break, but then proceeded to win 18 of the next 23 games to ease to victory.

While not at his best in the opener, the Japanese ace found his rhythm more in the the sets that followed, making the most of the opportunities that came his way by converting seven of 11 break point chances as he refused to give Mahut an easy service game.

"It was a tough first set," said Nishikori. "I didn't start quite well today. But I was returning better in the second and third and everything started working well. It was a good match."

Nishikori will face a tall test in the fourth round in the form of the big-serving Ivo Karlovic. The Croatian fired a relatively low 14 aces, but smashed 53 winners in his 6-4, 7-6(3), 6-3 victory over Jared Donaldson on Saturday.