Venus Williams of the U.S. reacts during a press conference after she withdrew from her third round match against Germany's Andrea Petkovic injured at the Australian Open tennis championships in Melbourne, Australia, on Friday, Jan. 21, 2011. (AP Photo/Andrew Brownbill)

Photo by: Andrew Brownbill

Venus Williams of the U.S. reacts during a press conference after she withdrew from her third round match against Germany's Andrea Petkovic injured at the Australian Open tennis championships in Melbourne, Australia, on Friday, Jan. 21, 2011. (AP Photo/Andrew Brownbill)