Roger Federer and Stanislas Wawrinka (R) of Switzerland compete during the men's doubles gold medal match of Beijing Olympic Games tennis event against Simon Aspelin and Thomas Johansson of Sweden in Beijing, China, Aug. 16, 2008. Roger Federer and Stanislas Wawrinka of Switzerland won the match and claimed the title in this event. (Xinhua/Wang Yuguo) Photo Gallery>>>

Roger Federer (R) and Stanislas Wawrinka of Switzerland compete during the men's doubles gold medal match of Beijing Olympic Games tennis event against Simon Aspelin and Thomas Johansson of Sweden in Beijing, China, Aug. 16, 2008. (Xinhua/Xing Guangli) Photo Gallery>>>

Roger Federer (L) and Stanislas Wawrinka of Switzerland enter the court prior to the men's doubles gold medal match of Beijing Olympic Games tennis event against Simon Aspelin and Thomas Johansson of Sweden in Beijing, China, Aug. 16, 2008. (Xinhua/Xing Guangli) Photo Gallery>>>