US Open, Flushing Meadows
Dates: 30 August - 12 September Start time: 1600 BST
Coverage: Live text commentary on BBC Sport website and mobiles; updates on BBC Radio 5 live; live on Sky Sports
Top seed Caroline Wozniacki reinforced her Grand Slam credentials with a blistering 6-0 6-0 second-round victory on day four of the US Open.
The 20-year-old Dane needed only 47 minutes to beat Chinese Taipei's Kai-Chen Chang and set up a third-round clash against Yung-Jan Chan.
Fourth seed Jelena Jankovic came through a testing match 6-4 3-6 6-2 against Croatia's Mirjana Lucic.
Maria Sharapova beat Iveta Benesova 6-1 6-2 in the night match.
The winner will face qualifier Beatrice Capra after the 18-year-old American enjoyed a superb 7-5 2-6 6-3 victory against 18th seed Aravane Rezai.
Capra, ranked 351 places lower than the Frenchwoman, was making her Grand Slam debut and recorded her first victory against a top-75 player.
I've been playing really great tennis. I'm feeling good, so no worries
And Capra revealed that the efforts of compatriot Melanie Oudin in reaching the quarter-finals as a 17-year-old last year had been on her mind.
"Melanie is such an inspiration to me," she said. "Last year I watched every match of hers. "I played her the year before in the juniors and then she was making the quarter-finals of the US Open."
Wozniacki was in no mood to hang around as she swept past Chang in Arthur Ashe Stadium.
"I've played tough matches in the previous weeks," said the Dane, who has picked up titles in Copenhagen, Montreal and New Haven in recent weeks.
"I've been playing really great tennis. I'm feeling good, so no worries. For me it's just about winning and getting through to the next rounds."
Over in Louis Armstrong Stadium, Jankovic came through a feisty encounter with 1999 Wimbledon semi-finalist Lucic.
Playing in only her second Grand Slam since 2002, the Croatian received a medical timeout in the second set for what appeared to be a blister but still managed to lead by a break at 3-2 in the third, only for Jankovic to reel off four straight games.
Ninth seed Agnieszka Radwanska was a high-profile casualty, the Pole going down 2-6 6-1 6-4 to China's Peng Shaui in a lengthy match on Grandstand.
Earlier, Russia's Svetlana Kuznetsova, the 2004 champion and 11th seed, eased past Anastasija Sevastova of Latvia 6-2 6-3.
Wimbledon finalist Vera Zvonareva also booked her place in the next round with a 6-1 7-6 (7-5) win over Sabine Lisicki, and Belgium's 15th seed Yanina Wickmayer had a 6-4 7-5 win over Germany's Julia Goerges.
But Spain's 22nd seed Maria Jose Martinez Sanchez lost in straight sets to Switzerland's Patty Schnyder 7-6 6-4.
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