At the French Open, she lost in the third round to fifth seed Elena Dementieva in a match that lasted more than three hours. At Wimbledon, Wozniak made it to the second round before losing to fourth seed Jelena Janković. After losing in the first round of the Rogers Cup in her native Quebec against Timea Bacsinszky, she lost again in the first round at the US Open against world No. 202, Sally Peers, in a match that took just 48 minutes. She was out for the remainder of the season due to a forearm injury.