Caroline Wozniacki plays Yanina Wickmayer in the semifinals at the US Open Tennis Championships in New York

Caroline Wozniacki of Denmark hits a forehand in her semifinal match against Yanina Wickmayer of Belgium in Arthur Ashe Stadium at the US Open Tennis Championships at the Billie Jean King National Tennis Center in New York on September 12, 2009. Wozniacki defeated Wickmayer 6-3, 6-3. UPI/John Angelillo