Justine Henin-Hardenne pulled out of next week's Rogers Cup women's tournament on Thursday because of a knee injury.
The Belgian star hasn't played since the Wimbledon final in July, when she lost in three sets to Amelie Mauresmo of France. "I am really disappointed to have to withdraw from the Rogers Cup, which I have been preparing hard for over the past weeks," Henin-Hardenne said in a statement.
"I have always loved playing in front of the amazing fans at the Rogers Cup, but unfortunately my right knee has not fully recovered and my doctors have told me that I need to rest it for a few days."
Mauresmo (shoulder) and Venus Williams (wrist) have already withdrawn from the event due to injury. China's Peng Shuai will take Henin-Hardenne's place in the draw.