U.S. swimmer Michael Phelps competes in the men's 400-meter individual medley final swimming event during the first day of Olympics competition in London on Saturday, July 28. Phelps failed to medal in the event, finishing fourth. Photos: The opening ceremony Getty Images Ryan Lochte of the United States cuts through the water in the freestyle portion of the men's 400-meter individual medley finals on Saturday. Lochte won the gold medal. Getty Images
Freedom Chiya of South Africa dives for the ball against the United States during the men's beach volleyball preliminary round. AFP/Getty Images
Arianna Errigo, left, of Italy celebrates winning her semifinal fencing match against Valentina Vezzali of Italy in women's individual foil. Getty Images
Australia's Samantha Richards, center, shoots a layup against Great Britain during women's basketball play. AFP/Getty Images
Gaetane Thiney of France is checked by Choe Mi Gyong, left, and O Hui Sun, right, of North Korea during a women's soccer first-round match. Getty Images
Sania Mirza of India serves during her women's doubles tennis match with Rushmion Chakarvarthi against Chia-Jung Chuang and Su-Wei Hsieh of Taiwan. AFP/Getty Images
The fist of Turkey's Adem Kilicci lands against Nursahat Pazziyev of Turkmenistan during their first-round middleweight (75kg) bout. AFP/Getty Images
Poland's Natalia Partyka serves during a preliminary-round singles match against Denmark's Mie Skov in women's table tennis. AFP/Getty Images
U.S. volleyball player Destinee Hooker, left, spikes as South Korea's Kim Yeon-Koung attempts to block in the women's volleyball match. Getty Images
U.S. swimmer Ryan Lochte flashes his U.S. flag grill and the gold medal he won in the men's 400-meter individual medley. Getty Images
Heather Watson of Great Britain plays against Sabine Lisicki and Angelique Kerber of Germany during a women's doubles tennis match. Getty Images
Nadine Zumkehr of Switzerland dives for the ball against Greece during the women's beach volleyball preliminaries. Getty Images
Russian gymnast Emin Garibov competes on the floor during the men's qualification of the artistic gymnastics event. AFP/Getty Images
Russian gymnast Emin Garibov in the air during the men's artistic gymnastics qualification. AFP/Getty Images
French leftback Mariama Signate. left, vies with Norway's Amanda Kurtovic during a women's preliminary handball match. AFP/Getty Images
Brazil's Karla Costa, No. 5, looks to pass against France's Endene Miyem, No. 5, and Isabelle Yacoubou, No. 5, of France in the first half of the women's basketball competition. Getty Images
Michael Phelps of the United States dives in the water at the start of the the men's 400-meter individual medley final. He came in fourth. Getty Images
Australia's Alicia Coutts competes in the women's 4x100-meter freestyle relay final swimming event. AFP/Getty Images
U.S. swimmer Ryan Lochte smiles after winning gold in the men's 400-meter individual medley final. Teammate and rival Michael Phelps finished fourth. AFP/Getty Images
Jacob Wukie of the United States shoots an arrow during the men's team archery final match against Italy. Italy defeated the United States to win gold as South Korea got bronze. AFP/Getty Images
U.S. swimmer Ryan Lochte competes in the men's 400-meter individual medley final. "I know it's my time and I'm ready," said Lochte. AFP/Getty Images
Britain's leftback Ewa Palies, center, vies with Montenegro's Maja Savic, left, and Katarina Bulatovic during a women's preliminary handball match. AFP/Getty Images
Montenegro's pivot Ana Dokic vies with her competitors from Great Britain during a women's handball preliminary match. AFP/Getty Images
China's Sun Yang won gold in the men's 400-meter freestyle final. AFP/Getty Images
U.S soccer player Carli Lloyd, No.10, and teammate Alex Morgan, No.13, celebrate after scoring their third goal during a first-round game against Colombia. Getty Images
U.S. women's soccer team members Carli Lloyd, right; Megan Rapinoe, center; and Alex Morgan celebrate after scoring a third goal against Colombia during a first-round game. Getty Images
Brazil's Larissa Franca, left, and Juliana Silva both go for the ball during the women's beach volleyball preliminary game against Natacha Rigobert and Elodie Li Yuk Lo of Mauritus. Getty Images
A fencing helmet lies on the field during an interruption of the women's foil fencing semifinal bout between Italy's Arianna Errigo and Italy's Valentina Vezzali. AFP/Getty Images
Women's judo competition medalists, from left to right: Eva Csernoviczki of Hungary (tied for bronze); Charline Van Snick of Belgium (tied for bronze); Sarah Menezes of Brazil (gold); and Alina Dumitru of Romania (silver). Getty Images
A British fan shows his support during a women's handball preliminary match between Montenegro and Great Britain. Getty Images
Turkey's Nurdan Karagoz is competing in women's weightlifting. Getty Images
Japanese gymnast Kohei Uchimura competes during the men's artistic gymnastics qualification event on the first day of the London 2012 Olympic Games. AFP/Getty Images
Italy's Valentina Vezzali celebrates her victory over Tunisia's Ines Boubakri after their women's foil fencing quarterfinal bout. AFP/Getty Images
Sofiane Milous of France, in white, competes with Hovhannes Davtyan of Armenia during the men's judo event. Getty Images
U.S. player Christie Rampone, right, vies with Colombia's Ingrid Vidal during the women's soccer competition. AFP/Getty Images
Steve Grotowski of Great Britain dives for the ball during the men's beach volleyball preliminary round. Getty Images
Russia's gold medalist Arsen Galstyan poses on the podium of a men's judo event. AFP/Getty Images
U.S. swimmer Michael Phelps, right, and Hungary's Laszlo Cseh compete in the men's 400 meter individual medley heats. AFP/Getty Images
Jill Scott, left, of Great Britain celebrates scoring with teammates Eniola Aluku and Kelly Smith during a first-round women's soccer game against Camaroon. Getty Images
Qatari shooter Bahya Mansour al-Hamad competes during the 10 meter air rifle women's qualification. AFP/Getty Images
Switzerland's Roger Federer returns the ball to Colombia's Alejandro Falla during the men's singles tennis match. AFP/Getty Images
American Heather O'Reilly, right, vies with Colombia's Ingrid Vidal, second right, during a women's soccer game. AFP/Getty Images
Sweden's pivot Ulrika Agren, left, shoots under the look of Denmark's leftback Trine Troelsen during a women's preliminary handball match. AFP/Getty Images
Japanese gymnast Kazuhito Tanaka competes on the horizontal bar during the men's artistic gymnastics qualification event. AFP/Getty Images
Tiana Coudray of the United States riding Ringwood Magister competes in the dressage equestrian event. Getty Images
A picture taken with a robotic camera shows Nigeria's Quadri Aruna returning to Spain's Carlos Machado during their first round men's table tennis match. AFP/Getty Images
Roger Federer of Switzerland serves against Alejandro Falla of Colombia during their men's singles tennis match. Getty Images
Sue Bird, No. 6, of the United States shoots against Iva Ciglar, No. 10, of Croatia in the first half of their women's basketball game. Getty Images
Great Britain's Mark Cavendish, third left, and other competitors approach the last bend of the race outside of Buckingham Palace during the men's cycling road race. Getty Images
Yeji Kim of South Korea competes in a women's single sculls heat at Eton Dorney near Windsor, England. Getty Images
Maja Zebic of Croatia attacks the goal in women's handball preliminaries between Croatia and Brazil. Getty Images
Valentina Vezzali of Italy celebrates winning her women's foil individual fencing quaterfinal match against Ines Boubakri of Tunisia. Getty Images
Svetlana Germanovich of Kazakhstan competes in a women's single sculls heat. Getty Images
From left, Diguan Pigot of Suriname, Amini Fonua of Tonga and Mubarak Al Besher of United Arab Emirates compete in heat one of the men's 100-meter breaststroke. Getty Images
Spectators applaud as the peleton rides up Boxhill on the outskirts of London during the men's cycling road race. AFP/Getty Images
Aleksandra Privalova of Belarus serves against Xing Han of Congo during their women's singles table tennis match. Getty Images
Brazil's Sarah Menezes (top) celebrates after beating Belgium's Charline Van Snick in the semi-final judo match. AFP/Getty Images
Saki Kumagai of Japan waves to the crowd after playing in a first-round women's soccer game between Japan and Sweden. Getty Images
Desiree Scott of Canada and Andisiwe Mgcoyi of South Africa fight for the ball during a first-round women's soccer game. Getty Images
Robenilson Vieira de Jesus of Brazil absorbs a punch from Orzubek Shayimov of Uzbekistan during their match, which Vieira de Jesus won. AFP/Getty Images
France's Sofiane Milous, left, competes with Armenia's Hovhannes Davtyan during their men's judo match. AFP/Getty Images
Vietnam's Nguyen Thi Anh Vien competes in the women's 400-meter individual medley heats. AFP/Getty Images
Goalkeeper Andreia Suntaque of Brazil tries to block a cross as Sarah Gregorius of New Zealand attempts a header. Getty Images
Two athletes compete in the men's judo event. Getty Images
Italy's Arianna Errigo, left, fences against U.S. fencer Lee Kiefer during their women's foil fencing quarterfinal bout. AFP/Getty Images
Angola's Nadir Manuel, No. 14, center, follows through on her shot against Turkey's Quanitra Hollingsvorth, No. 12, and Turkey's Saziye Ivegin, No. 14. Getty Images
U.S. tennis player Serena Williams returns a shot against Jelena Jankovic of Serbia during their women's singles tennis match. Getty Images
Great Britain's Anna Bentley celebrates winning her women's foil match against Monica Peterson of Canada. Getty Images
Tomoko Fukumi of Japan, in white, and Kelly Edwards of Great Britain compete in the women's judo competition. Getty Images
British gymnast Daniel Purvis performs on the artistic gymnastics men's parallel bars. Getty Images
Eun Hee Ryu of South Korea scores from the penalty spot in the women's handball preliminaries against Spain. Getty Images
British fans enjoy the atmosphere during the men's cycling road race. Getty Images
Japan's Aya Sameshima and Sofia Jakobsson of Sweden compete for the ball during a women's first-round soccer game. Getty Images
An athlete performs on the rings before the men's qualification for artistic gymnastics. AFP/Getty Images
Felipe Kitadai of Brazil, in blue, competes with Rishod Sobirov of Uzbekistan in a judo match. Getty Images
Serbia's Maja Ognjenovic, right, passes the ball during a women's volleyball match between Serbia and China. AFP/Getty Images
China's Nan Chen, No. 15, huddles with teammates. Getty Images
Sweden's Sara Thunebro is given a yellow card during a women's first-round soccer game. Getty Images
French gymnast Cyril Tommasone competes on the pommel horse during the men's qualification of the artistic gymnastics event. AFP/Getty Images
Senegal's Malick Fall competes in the men's 100-meter breaststroke heats. AFP/Getty Images
China's Yi Siling celebrates with her gold medal on the podium after winning the 10-meter air rifle women's final. AFP/Getty Images
Kamila Augustyn of Poland looks for a shot against Anastasia Prokopenko of Russia during the women's singles badminton match. Getty Images
Julius Brink of Germany spikes the ball during the men's beach volleyball match against Russia. Getty Images
Rowers from Denmark compete in the men's lightweight four heats at Eton Dorney near Windsor, England. Getty Images
South Korea's gymnast Kim Hee Hoon competes on the rings during the men's qualification of the artistic gymnastics event. AFP/Getty Images
Belgium's Charline Van Snick, right, celebrates after winning against Hungary's Eva Csernoviczki during the women's judo match. AFP/Getty Images
Tunisia's Ines Boubakri celebrates her victory over U.S. fencer Nicole Ross after their women's foil fencing bout. AFP/Getty Images
Serbia's Ana Ivanovic returns the ball to American Christina McHale during their women's singles tennis match. AFP/Getty Images
Stefana Veljkovic, No. 11, and Ivana Djerisilo, No. 3, of Serbia react to a lost point to China during the women's volleyball game. Getty Images
Michele Mueller of Canada riding Amistad competes in the dressage equestrian event. Getty Images
U.S. swimmer Ryan Lochte dives off of the starting block at the start of heat five of the men's 400-meter individual medley. Getty Images
Having won the first gold medal of the Games, Siling Yi of China celebrates her victory during the ceremony for the women's 10-meter air rifle shooting. Getty Images
Siling Yi of China competes for the gold at the Royal Artillery Barracks. Getty Images
U.S. swimmer Michael Phelps competes in the men's 400 meter individual medley heats. AFP/Getty Images
Lijie Miao of China, No. 8, battles for the basketball against Petra Kulichova, No. 13, of Czech Republic. Getty Images
Japan's Nishioka Shiho, left, fences against Hong Kong's Lin Po Heung during their women's foil bout. AFP/Getty Images
U.S. swimmer Ryan Lochte competes in the men's 400-meter individual medley heats. AFP/Getty Images
Algeria's Sehryne Hennaoui spikes the ball as Japan's Yukiko Ebata reaches to block during a women's volleyball match. AFP/Getty Images
Russia's leftback Victoria Zhilinskayte, right, jumps to shoot during a preliminary round handball match against Angola. AFP/Getty Images
Iran's Elaheh Ahmadi, second from right, competes during the women's 10-meter air rifle qualification at the Royal Artillery Barracks. AFP/Getty Images
Mark Cavendish of Britain, right, takes off at the start of men's road race cycle event. AFP/Getty Images
Mongolia's Tumurkhuleg Davaadorj, left, competes with Brazil's Felipe Kitadai during a judo match. AFP/Getty Images
Chen Xue of China dips to return the ball during the women's beach volleyball match between China and Russia. See photos from day two of the games. Getty Images U.S. swimmer Michael Phelps competes in his 400-meter individual medley heat. AFP/Getty Images
Mawussi Agbetoglo of Togo serves against Justin Han of Australia during their preliminary round singles match in the table tennis competition. Getty Images
A rower prepares to compete at Eton Dorney near Windsor, England. Getty Images
Tobias Englmaier of Germany, in white, and Hovhannes Davtyan of Armenia compete in the men's judo competition. See photos from Day 2 of the competition. Getty Images