Serena Williams withdraws from China Open
Serena Williams pulled out of the 2012 China Open with an illness.
Her sister Venus is also out of the event with a back injury.
"We would have loved for Venus and Serena to play the China Open this year, but unfortunately players get injured and sick and are unable to compete," Charles Hsiung, a director of the tournament, said.
"We hope that they both recover quickly and look forward to them returning to the National Tennis Stadium in 2013," he added.
Serena will be replaced by Romina Oprandi.
Williams' own Twitter account carried a short message saying:
Flu no fun. :(— Serena Williams (@serenawilliams) September 27, 2012