High Quality Content by WIKIPEDIA articles! Serena Williams and her sister Venus Williams were the defending champions. However, Serena withdrew from the tournament because of a foot injury and Venus chose to participate in the singles event only.Vania King and Yaroslava Shvedova defeated Liezel Huber and Nadia Petrova 2–6, 6–4, 7–6(4) in the final. This match was played over two days due to heavy rainfall on September 12.