Fifth-seeded Ana Ivanovic of Serbia, one of the pre-tournament favorites after her runner-up finish at the French Open, fought back from a slow start to erase France's Aravane Rezai 6-3, 6-1.
2 of 13Manny Millan/SI
Second-seeded Rafael Nadal battled some sore knees in his opening-round victory. The reigning French Open champion and two-time Wimbledon runner-up was tested in a 7-5, 3-6, 6-4, 6-1 victory over Alun Jones. The gritty Nadal twice received treatment for tendinitis in his aching left knee. His right knee was wrapped-up for his Day 3 match.
3 of 13Chuck Solomon/SI
Aussie wild card Alun Jones, 27, ranked No. 123 in the world, has yet to win a grand slam tournament singles match in four attempts. He threatened to produce an upset over Nadal.
4 of 13Manny Millan/SI
Reigning Wimbledon champion Venus Williams, seeded 12th, waltzed past Romania's Ioana Raluca Olaru, 6-4, 6-2 in 69 minutes.
5 of 13Manny Millan/SI
Top seed Roger Federer began his bid for a fourth consecutive U.S. Open title with a 6-3, 6-2, 6-4 victory over American qualifier Scoville Jenkins.
6 of 13Manny Millan/SI
Scoville Jenkins, 21, who came into the match ranked No. 320, committed 31 unforced errors, including seven double faults, and failed to break Federer's serve once.
7 of 13Manny Millan/SI
Sixth seed James Blake survived a tough test when he beat fellow American Michael Russell 7-6, 6-3, 7-6 to reach the second round.
8 of 13Manny Millan/SI
Top-seeded Justine Henin of Belgium cruised to a 6-0, 6-3 victory over 18-year-old German Julia Goerges in Monday's first round.
9 of 13Chuck Solomon/SI
Tim Henman, who will officially cap his career with a Davis Cup match next month, upset 27th-seeded Russian Dmitry Tursunov, 6-4, 3-6, 6-3, 6-4 on Wednesday.
10 of 13Chuck Solomon/SI
Third seed Jelena Jankovic of Serbia, a semifinalist at last year's U.S. Open, had an easy time with Olga Govortsova of Belarus, scoring a 6-2, 6-2 triumph.
11 of 13Manny Millan/SI
Fourth-seeded Russian Nikolay Davydenko broke Nicolas Kiefer's serve a whopping six times, dispatching the oft-injured German 6-2, 6-2, 6-2 in 1 hour, 45 minutes.
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Czech slugger Nicole Vaidisova, seeded 13th, vaulted past Russian Alla Kudryavtseva 6-1, 6-2 in her opener. Vaidisova is playing her first tennis since early July after being sidelined with a mono-like illness.
13 of 13Erick W. Rasco/SI
Third-seeded Serbian star Novak Djokovic handled Dutchman Robin Haase 6-2, 6-1, 6-3 on Day 2.
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