New York: Roger Federer thrashed Argentine Carlos Berlocq 6-3, 6-2, 6-1, at the Flushing Meadows, to enter the third round on Thursday.
Serena Williams, meanwhile, took another emphatic step in defence of her title by crushing Galina Voskoboeva of Kazakhstan 6-3, 6-0 to reach the third round.
The top-seeded American took a short while to get accustomed to breezy conditions on Arthur Ashe Stadium court before winning 10 of the last 11 games in a 69-minute rout.
Serena, 31, has dropped just four games in four sets at Flushing Meadows this year, slamming the door on the 77th-ranked Voskoboeva by limiting her to nine points in the second set.
Sara Errani on Thursday became the highest seed to be knocked out of this year’s US Open when she suffered a surprise 3-6, 1-6 loss to Flavia Pennetta.
Errani, seeded fourth for the women’s singles, was sent packing after just 71 minutes by her fellow Italian in a second round match at the Arthur Ashe Stadium.
Wimbledon champion Andy Murray, whose starting time was further delayed after four hours of rain delay had stalled proceedings at Flushing Meadows, raced through an entertaining 6-2, 6-4, 6-3 98-minute drubbing of 49th-ranked Frenchman Michael Llodra on Centre Court.
In another upset of the day, 33-year-old Venus Williams lost to China’s Zheng Jie 3-6, 6-2, 6-7 in the second round before rejecting any possibility of retirement.
A semi-finalist at Flushing Meadows last year, Errani was looming as a contender this year and appeared to be in great form after doling out a rare double-bagel win in her opening match against Australia’s Olivia Rogowska in under an hour.
Errani will now focus her attention on the doubles where she and her countrywoman Roberta Vinci will defend the title they won last year. Vinci fared better in her second round singles match on Thursday with the 10th seed defeating Lucie Safarova 4-6, 6-1, 6-2.
Andy Murray was not happy about having to wait until Wednesday night to open defence of his US Open title but the Briton was quite pleased with the result after delivering a masterly thrashing of Michael Llodra 6-2, 6-4, 6-3.
“The rallies were quick, sharp. Wasn’t much time between points. He was playing quickly on his serves in between points,” the third-seeded Scot rattled off like winners from his racquet.
“It was a fairly, I thought, high standard match. Lots of reactions and dropshots, and definitely tested my movement today. I thought I moved well. I didn’t make too many errors. It was a solid match.”
The world No. 3’s only lapse was when he allowed the Frenchman to break his serve in the second game of the second set. Murray, who made only five unforced errors, faced just two break points while converting a tidy five-of-seven to set up a second-round clash against Leonardo Mayer of Argentina, a 7-6(4), 6-4, 3-6, 7-6(4) winner against Romania’s Victor Hanescu.
Venus on Thursday though vowed to be back. “Oh wow, I definitely want to come back for the atmosphere,” she said. “I’ll get there soon.”