United States' team, from left, Brendan Hansen, Michael Phelps, Aaron Peirsol and Jason Lezak show their gold medals after the men's 4x100-meter medley relay final at the Beijing 2008 Olympics.
Britain's Mark Hunter and Zac Purchase hold their gold medal after winning the Lightweight Men's double sculls final at the Beijing 2008 Olympics.
South Korea's Park Mi-young and Kim Kyung-ah, celebrate their victory over Japan's Haruna Fukuoka and Sayaka Hirano in the women's table tennis team competition bronze medal match at the Beijing 2008 Olympics.
Elena Dementieva of Russia plays compatriot Dinara Safina of Russia during their Gold medal singles tennis match at the Beijing 2008 Olympics.
Britain's Rebecca Romero celebrates after winning the gold medal of the Track Cycling Women's Individual Pursuit event at the Beijing 2008 Olympics.
Rafael Nadal of Spain serves to Fernando Gonzalez of Chile during their Gold medal singles match of the Beijing 2008 Olympics.
Gold medal winner Elena Dementieva of Russia is flanked by silver medalist Dinara Safina and bronze medalist Vera Zvonareva at the Beijing 2008 Olympics.
Serena and Venus Williams of the United States react after they beat Anabel Medina Garrigues and Virginia Ruano Pascual of Spain 6-2, 6-0 during their Gold medal doubles match of the Beijing 2008 Olympics.
Zhang Yangyang, Xi Aihua, Jin Ziwei and Tang Bin from China celebrate after winning the gold medal in the women's quadruple sculls race at the Beijing 2008 Olympics.
Gold medalist Kazakhstan's Ilya Ilin, center, is flanked by silver medalist Poland's Szymon Kolecki, left, and bronze medalist Russia's Khadzhimurat Akkaev at the podium of the men's 94 kg of the weightlifting competition at the Beijing 2008 Olympics in Beijing.
Jamaica's Shelly-Ann Fraser celebrates as she crosses the finish line to win the women's 100-meter final during the athletics competitions in the National Stadium at the Beijing 2008.
Serena, left, and Venus Williams of the United States hold hands during the medals ceremony after winning gold in womens doubles tennis at the Beijing 2008 Olympics in Beijing.
Germany's Christian Ahlmann rides Coster during the first round of the equestrian team Show Jumping competition during the Beijing 2008.
From left, Italy's Diego Occhiuzzi, Luigi Tarantino, Aldo Montano and Giampiero Pastore on the podium with the bronze medals they won at the men's team saber finals at the Beijing 2008.
USA's Elaine Youngs dives for the ball during a women's quarterfinal beach volleyball match against China at the Chaoyang Park Beach Volleyball Ground at the Beijing 2008.
Gold medal winner gymnast Sandra Izbasa from Romania, center, is flanked by runner-up Shawn Johnson of the United States, right, and Nastia Liukin of the United States who won the bronze medal as they pose on the podium during the women's floor apparatus finals at the Beijing.
From left to right: silver medalist Julia Pakhalina of Russia; gold medalist Guo Jingjing of China; and bronze medalist Wu Minxia of China stand at the medal ceremony of the women's 3m springboard diving finals at the Beijing 2008 Olympics.
Winner Rafael Nadal of Spain, centre, silver medalist Fernando Gonzalez of Chile, left, and Novak Djokovic of Serbia, bronze, during their singles tennis medal award ceremony at the Beijing 2008 Olympics in Beijing.
Britain's Christine Ohuruogu crosses the finish line of a women's 400-meter semi-final during the athletics competitions in the National Stadium.
Romania's gold medal winner Constantina Tomescu is flanked by Kenya's silver medal winner Catherine Ndereba, left, and China's bronze medal winner Zhou Chunxin during the medal ceremony for the women's marathon during the athletics competitions in the National Stadium.
Kyoko Hamaguchi of Japan, left, and Agnieszka Wieszczek of Poland, both bronze medal winner of 72kg women's freestyle wrestling competition of the Beijing 2008 Olympics.
Gold medal winner gymnast Sandra Izbasa from Romania poses with her medal during the women's floor apparatus finals at the Beijing 2008 Olympics in Beijing.
Chinese President Hu Jintao watches the women's table tennis team competition gold medal round between China and Singapore at the Beijing 2008 Olympics in Beijing.
Tiffany Ross-Williams of United States, second right, leads the others in the women's 400-meter hurdles heat during the athletics competitions in the National Stadium at the Beijing 2008 Olympics in Beijing, Sunday, Aug. 17, 2008. They are, from left, Irina Obedina of Russia, Lucimar Teodoro of Brazil, Ross-Williams and Shevon Stoddart of Jamaica.
The Yngling team from the Netherlands reacts after winning the Silver medal during the Yngling three-women keelboat sailing competition of the 2008 Beijing Olympics in Qingdao, about 720 kilometers southeast of Beijing.
Men's hammer throw gold medalist Primoz Kozmus of Slovenia, center, shows his medal with silver winner Vadim Devyatovskiy, left, and Ivan Tsikhan, both of Belarus, during the awarding ceremony in the National Stadium at the Beijing 2008 Olympics in Beijing.
From left, France's Boris Sanson, Jerome Pillet, and Nicolas Lopez celebrate their gold medals won at the men's team saber finals against the USA at the Beijing 2008 Olympics in Beijing.
Singapore's Wang Yue Gu, left, Feng Tianwei, center, and Li Jia Wei celebrate after winning the silver medal in the women's table tennis team competition gold medal round at the Beijing 2008 Olympics in Beijing.
Australia's Mark Knowles, right, and Netherland's Matthijs Brouwer collide during the men's field hockey competition at the Olympic Hockey Center at the Beijing 2008 Olympics in Beijing.
From left, Australia's Yngling team Krystal Weir, Karyn Gojnich and Angela Farrell sail during the medal race of the Yngling three-women keelboat sailing competition of the 2008 Beijing Olympics in Qingdao, about 720 kilometers southeast of Beijing.