

Ana Ivanovic needed just 56 minutes to beat seed No.21 Zheng Jie and advance to the third round of the US Open.
The world No.40 Ivanovic is building on the momentum started in Cincinnati recently, which was abruptly interrupted by a left foot injury. Luckily, Ivanovic is not showing signs of it and she displayed impressive form to avenge the 2008 Wimbledon defeat to Zheng, who then became the third-lowest ranked player to beat a reigning world No.1.
Tenth seed Victoria Azarenka could not bear the hot weather in New York and 34 minutes into her second round match against Gisela Dulko, while trailing 5-1, Azarenka collapsed and had to be taken off the court in a wheelchair and was later transported to the hospital. Also, it didn’t help that Azarenka was wearing an all-black dress in the sun (the dress Serena would have worn hadn’t she withdrawn).
Dulko, who is now through to the third round, commented on the weather conditions: "It's really hot, really humid. You sweat so much, sometimes it's impossible to hold the racquet."
Update: It has been revealed that heat was not the main reason for the accident, but Azarenka's fall in the gym that happened before the match.
Here's Azarenka's statement:
I was warming up in the gym prior to my match against Gisela Dulko when I fell while running a sprint. I fell forward and hit my arm and head. I was checked by the medical team before I went on court and they were courtside for monitoring. I felt worse as the match went on, having a headache and feeling dizzy. I also started having trouble seeing and felt weak before I fell.
(photo: © Neal Trousdale)