CRI听力:China's Zheng Saisai Knocked out of US Open

Rising Chinese star Zheng Saisai has been bounced early from the US Open, going down to American Madison Brengle in a three set affair.

The only other Chinese representation in the Women's singles event, Wang Qiang, will start her tournament on Tuesday.

In other action, 7th seed Ana Ivanovic has been sent home early, going down to Dominika Cibulkova 6-3, 3-6, 6-3.

"Yeah, definitely. I really felt like I had been improving. Last week I saw a huge improvement in my game, you know, overall; my serve was really good today, I felt. You know, that's why it's so disappointing, because it was very tough first match I think for both of us. First match of the tournament, as well. So it's not easy, but today I felt like she used her opportunities better than I did."

The 27-year-old Serbian was the first of a number of seeds to fall on the opening day of the US Open.

Others, including Karolina Pliskova from the Czech Republic and Carla Suarez Navarro from Spain also exited with opening-match losses, leaving 12th seed Belinda Bencic as the top-rated foe in Serena Williams' half of the draw.

Three-time defending champion Williams, who lost to Bencic in the Semi-finals of an event in Toronto last week, could face the Swiss teen again in the quarter-finals at Flushing Meadows.

Williams is now seeking her first ever sweep of the Grand Slams in a calendar year, as well as her 22nd career Grand Slam title.

On the men's side, last year's finalist Kei Nishikori of Japan has suffered a shock first round defeat.

The 4th seed lost went down in five sets France's Benoit Paire.

"Yeah, it's very sad to lose always first round, but I think he was playing good tennis. So, I mean, I don't think I played bad. Didn't play great, but still, it's never easy first match. He's a good player. You know, try to think about next one, and I hope I can come back strong next year."

Novak Djokovic, Spainiard David Ferrer, Filip Krajinovic of Serbia and Canadian Vasek Pospisil have made it through.