Azarenka collapses, wheeled off court at US Open

Victoria Azarenka collapsed and had to be taken off the court in a wheelchair today, an accident that resulted from concussion she suffered after falling and hitting her head while warming up for her US Open match.



The 10th-seeded Belarusian was trailing Gisela Dulko 5-1, 31 minutes into her match on another steamy day at Flushing Meadows, when she stopped running and crumpled to the ground. She was taken to the hospital for tests and diagnosed with mild concussion.



However, the 21-year-old released a statement saying it was a head injury, not the heat, that set her up for the fall.



In other action today, former world Number 1 Ana Ivanovic defeated 21st-seeded Zheng Jie, 6-3, 6-0 in a match that took 56 minutes.



Later, Number 3 Venus Williams defeated Rebecca Marino 7-6, 6-3.



Other winners were Number 20 Sam Querrey, Number 14 Nicolas Almagro and Number 4 Andy Murray, who defeated Lukas Lacko of Slovakia, 6-3, 6-2, 6-2.



However, seventh-seeded Tomas Berdych lost to Michael Llodra, and Ryan Harrison, an 18-year-old American qualifier, defeated Number 15 Ivan Ljubicic.