Former world number one Kim Clijsters, contesting her first Grand Slam since the 2007 Australian Open after getting married and giving birth to her first child, is first up on Arthur Ashe Stadium against Viktoriya Kutuzova
Victoria Azarenka has been tipped by many as an outsider for the women's title and she gets her campaign under way with a 6-1 6-1 thrashing of Alexandra Dulgheru
Agnieszka Radwanska, the number 12 seed from Poland, sees off Patricia Mayr 6-1 6-2 to set up a second-round meeting with Maria Kirilenko after the unseeded Russian beat Mariya Koryttseva 6-2 6-1
Clijsters' last match at Flushing Meadows saw her beat Mary Pierce in the 2005 final, and she looks in sensational form as 2003 junior US Open runner-up Kutusova is beaten 6-1 6-1
World number one and defending champion Roger Federer makes a blistering start against 18-year-old American Devin Britton, ranked 1,370 in the world and a wildcard entry into the tournament
Mikhail Youzhny is a picture of delight as the unseeded Russian beats Paul-Henri Mathieu, the number 26 seed, 2-6 7-5 6-0 6-2 and improves his head-to-head record against the Frenchman to 4-1
Big-serving Robin Soderling, the French Open finalist and 12th seed, overcomes a second-set blip against Spain's Albert Montanes to reach round two with a 6-1 3-6 6-1 6-4 victory
Federer takes the opening set in just 18 minutes but the 15-time Grand Slam champion has his serve broken by Britton once in both the second and third sets
But on both occasions Federer breaks straight back and wraps up a 6-1 6-3 7-5 win to set up a second round match against Germany's Simon Greul
Two-time semi-finalist Nikolay Davydenko, the eighth seed, makes serene progress with a straight sets victory over Dieter Kindlmann
Defending women's champion Serena Williams, who is bidding for her 12th Grand Slam title and fourth US Open, salutes her home crowd on Arthur Ashe Stadium after seeing off fellow American Alexa Glatch in straight sets
British number one Andy Murray gets put through his paces in preparation for his first-round match against Ernests Gulbis on Tuesday
Amelie Mauresmo is more than happy to meet and greet the masses of autograph hunters after beating Tatjana Malek 6-3 6-4
Germany's Tommy Haas has a tough time before finally coming through in four sets against Alejandro Falla
"New York, I've missed you!" says Andre Agassi as he returns to Arthur Ashe Stadium ahead of the first night session
All the stops are pulled out for the opening ceremony on Arthur Ashe Stadium ahead of the two night matches
Venus Williams is in early trouble against Vera Dushevina as she requires attention to her left knee, but the third seed battles to a three-set win in two hours and 43 minutes
Andy Roddick does not get onto court until after 11pm local time but makes quick work of beating Germany's Bjorn Phau in straight sets
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