Two-time US Open champion Venus Williams announced her withdrawal from this year's tournament just before she was due to play her second round match against No. 22 Sabine Lisicki of Germany on Wednesday, August 31. Williams had missed much of the 2011 tennis season with a hip and abdominal injury and then was hit with a virus late in the summer. In a statement regarding her withdrawal, Williams said she has finally received a diagnosis for her illness.