Top seeds Roger Federer and Justine Henin quickly won their first matches at the U.S. Open on Monday, posting straight-set victories to advance to second round of the final Grand Slam event of the season.
Federer, seeking to become the first man in the Open era to win four straight titles in the U.S championship and first since Bill Tilden in 1923, faced only two break points in beating American Scoville Jenkins 6-3, 6-2, 6-4.
"I thought it was a good match, you know, tough match. Didn't allow my opponent many chances on my serve," Federer said.
"Maybe other guys like five-setters in the first round. I like straight sets more. Some reason, I don't know why," he added smiling.
Henin, who was only 44 percent on her first serves, still moved past Germany's Julia Goerges 6-0, 6-3 in one hour, two minutes.
"It's not my favorite Grand Slam," Henin said. "It's so different. You need to get used to it. There are places where you feel a little bit better."
Fourth-seeded Nikolay Davydenko also won his first match easily while Jelena Jankovic struggled through some second-set trouble before prevailing.
Davydenko, a semifinalist last year, eliminated American teenager Jesse Levine 6-4, 6-0, 6-1, beating one of 10 men making their first appearance in the U.S. Open on Monday.
Jankovic began the day on the main Arthur Ashe Stadium show court and, after taking a 6-2, 5-1 lead, lost four straight before finally subduing Jamila Gajdosova of Slovakia 6-2, 7-6 (2).
Gajdosova survived double-match point at 5-4 to break Jankovic for a second time. She held and forced the tiebreaker, but the Serbian closed out the victory in 1:20.
Jankovic, who reached the semifinals at last year's U.S. Open and again at Roland Garros in June, admitted losing concentration midway through the match when her shoe "broke somehow."
"I started thinking 'What am I going to do if this shoe completely wears out? Can I play barefoot,'" she said, adding that a trainer fixed her problem.
"Oh my God, I walked out on Arthur Ashe Stadium and thought about what happened one year ago. It was a great atmosphere. I was a little bit nervous and a little bit excited at the same time. I played a little bit bad for me, but it's good to be able to get through matches like this."
Unlike last year, when rain disrupted play throughout the first week, the tournament began under mostly sunny skies with temperatures around 26 degrees Celsius (78 degrees Fahrenheit) and 54 percent humidity.
The optimum weather attracted a crowd of 35,058, the largest first day attendance in the history of the U.S. Open.
The men lost their first seeds when Feliciano Lopez upset fellow Spanaird and No. 21 Juan Carlos Ferrero 6-3, 6-4, 6-4 and Max Mirnyi of Belarus beat No. 18 Marcos Baghdatis 6-3, 7-5, 3-6, 7-6 (6).
Other men's winners included ninth-seeded Tomas Berdych over Frenchman Marc Gicquel 6-3, 7-6 (0), 6-2; No. 13 Richard Gasquet over Argentina's Sergio Roitman 7-5, 6-1, 6-2; and No. 19 Andy Murray over Uruguay's Pablo Cuevas 6-2, 6-3, 6-0.
No. 28 Ai Sugiyama was the first to advance to the second round, dispatching Andreja Klepac of Slovenia 6-3, 6-1. The Japanese player converted four of six break points and took only 1:07 to complete the win.
The first women's seed to be eliminated was No. 29 Samantha Stosur of Australia, beaten by France's Alize Cornet 6-3, 6-2.
In other early women's play, No. 10 Marion Bartoli of France defeated American Alexa Glatch 6-1, 6-1; No. 15 Dinara Safina beat Catalina Castano of Colombia 6-2, 6-3; No. 19 Sybille Bammer dismissed Tamarine Tanasugarn of Thailand, 6-4, 6-4; No. 20 Lucie Safarova of the Czech Republic beat Australia's Jessica Moore 6-3, 6-2; and No. 27 Vera Zvonareva defeated Russian compatriot Alina Jikdova 6-0, 6-7 (5) 6-0.