United States' Michael Phelps reacts as he wins gold in the final of the men's 100-meter freestyle during the swimming competitions at the Beijing 2008 Olympics. (AP Photo)
Tulashboy Doniyorov of Uzbekistan (in blue) fights Jitender Kumar of India (in red) during a men's flyweight 51 Kg preliminary boxing match at the Beijing 2008 Olympics. (AP Photo)
Japan's Saori Yoshida celebrates winning the women's freestyle 55 Kg gold medal final bout against China' Xu Li at the Beijing 2008 Olympics. (AP Photo)
Spain goalkeeper Inaki Aguilar watches for a shot from Montenegro's Aleksandar Ivovic (9) as Spain's Felipe Perrone (10) guards Ivovic during a preliminary round men's water polo match at the Beijing 2008 Olympics. (AP Photo)
Spain's Joan Llaneras celebrates after clinching the gold medal in the Track Cycling Men's Points race at the Beijing 2008 Olympics. (AP Photo)
Jackie Johnson of the United States clears the bar in the women's heptathlon high jump during the athletics competitions at the Beijing 2008 Olympics. (AP Photo)
Athletes in action in the women's heptathlon 100-meter hurdles at the Beijing 2008 Olympics. (AP Photo)
Elena Dementieva of Russia reacts after beating Vera Zvonareva of Russia 6-3, 7-6 at the women's singles tennis competition at the Beijing 2008 Olympics. (AP Photo)
Tyson Gay of United States reacts after a men's 100-meter semi-final after he failed to qualify for the final at the Beijing 2008 Olympics. (AP Photo)
Jamaica's Usain Bolt poses next to the scoreboard after setting a new world record as he wins gold in the men's 100-meter final at the Beijing 2008 Olympics. (AP Photo)
India's Vijender Kumar defeated Thailand's Angkan Chomphuphuang and advanced to the quarterfinals of the 2008 Olympic Games Middleweight (75 kg) boxing bout in Beijing. (AFP Photo)
Roger Federer and Stanislas Wawrinka of Switzerland won the men's tennis doubles gold medal after defeating Simon Aspelin and Thomas Johansson of Sweden at the Beijing 2008 Olympics. (AP Photo)