Turkey's Nurdan Karagoz competes in the women's 48-kg weightlifting event at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Ben Curtis)

Susan Thorsgaard of Denmark, right, and Kristina Flognman of Sweden challenge during their women's handball preliminary match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Matthias Schrader)

Therese Islas Helgesson of Sweden covers her face lying on a stretcher after suffering an injury during women's handball preliminary match against Denmark at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Vadim Ghirda)

U.S. gymnast Samuel Mikulak performs on the pommel horse during the Artistic Gymnastics men's qualification at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Matt Dunham)

Roger Federer of Switzerland celebrates his 6-3, 5-7, 6-3 victory over Alejandro Falla of Columbia at the All England Lawn Tennis Club in Wimbledon, London at the 2012 Summer Olympics, Saturday, July 28, 2012. (AP Photo/Elise Amendola)

Linnea Torstensson of Sweden, center, is challenged by Denmark's Louise Burgaard, left, and Camilla Dalby, right, during their women's handball preliminary match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Vadim Ghirda)

USA men's water polo athletes work out at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Julio Cortez)

Great Britain's Lizzie Neave trains for the women's K-1 kayak slalom at the Lee Valley White Water Center at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Victor R. Caivano)

Riders pass by Richmond Park during the men's road cycling race at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Alastair Grant)

Valentina Vezzali of Italy, left, and Shiho Nishioka of Japan, compete in the round of 32 during women's fencing at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Andrew Medichini)

Great Britain's Anthony Ogogo fights Dominican Republic's Junior Castillo Martinez, right, during a men's bantam 75-kg preliminary boxing match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Ivan Sekretarev)

United States' Ryan Lochte reacts after finishing first in the men's 400-meter individual medley swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Saturday, July 28, 2012. (AP Photo/Daniel Ochoa De Olza)

A medic treats German gymnast Plilipp Boy after he injured his right ankle during a performance on the vault at the Artistic Gymnastics men's qualification at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Gregory Bull)

Japan's Kosuke Hagino, top, and United States' Ryan Lochte compete in the men's 400-meter individual medley swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Saturday, July 28, 2012. (AP Photo/David J. Phillip)

United States' Ryan Lochte swims on his way to win the men's 400-meter individual medley swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Saturday, July 28, 2012. (AP Photo/David J. Phillip)

A member of the jury looks on as competitors shoot during qualifiers for the women's 10-meter air rifle event, at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Rebecca Blackwell)

Italy's Elisa Di Francisca faces Korea's Nam Hyun Hee during a semifinal fencing match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Morry Gash)

Richard Stauffacher of Switzerland, left, Julien Bontemps of France and Byron Kokalanis of Grece sails on a RS:X during practice session of the London 2012 Summer Olympics, Saturday, July 28, 2012, in Weymouth and Portland, England. (AP Photo/Francois Mori)

German gymnast Fabian Hambuchen performs on the vault during the Artistic Gymnastic men's qualification at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Julie Jacobson)

Caroline Wozniacki of Denmark returns to Anne Keothavong of Great Britain in a first round match at the All England Lawn Tennis Club in Wimbledon, London at the 2012 Summer Olympics, Saturday, July 28, 2012. (AP Photo/Elise Amendola)

United States' Michael Phelps reacts after placing fourth in the men's 400-meter individual medley swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Saturday, July 28, 2012. (AP Photo/Mark J. Terrill)

Uzbekistan's Marina Sisoeva competes in the women's 48-kg weightlifting event at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Mike Groll)

United States' Sylvia Fowles (13) grabs a rebound over Croatia's Ana Lelas (11) during their women's group A basketball game at the 2012 Summer Olympics on Saturday, July 28, 2012, in London. (AP Photo/Sergio Perez, Pool)

Star crew Fredrik Loof, background, and Max Salminen, from Sweeden, train before an official practice race during the London 2012 Summer Olympics, Saturday, July 28, 2012, in Weymouth and Portland. (AP Photo/Bernat Armangue)

Ewa Palies of Great Britain, center, falls after being tackled by Maja Savic, left, and Katarina Bulatovic, right, of Montenegro during their women's handball preliminary match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Vadim Ghirda)

The United States team lines up before the group G women's soccer match between the United States and Colombia at the London 2012 Summer Olympics, Saturday, July 28, 2012, at Hampden Park Stadium in Glasgow, Scotland. (AP Photo/Chris Clark)

Nambia's Jonas Matheus fights Italy's Jahyn Vittorio Parrinello, right, during a bantam weight 56-kg preliminary boxing match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Patrick Semansky)

Dominican Republic's William Encarnacion Alcantar walks back to the locker room after a bantam weight 56-kg preliminary boxing match against Gabon's Braexir Lemboumba at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Patrick Semansky)

Ukrainian gymnast Oleg Verniaiev performs on the parallel bars during the Artistic Gymnastics men's qualification at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Julie Jacobson)

Morocco's Aboubakr Seddik Lbida reacts after his loos to Australia's Ibrahim Balla in a bantam weight 56-kg preliminary boxing match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Patrick Semansky)

German gymnast Sebastian Krimmer performs on the horizontal bar during the Artistic Gymnastics men's qualification at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Matt Dunham)

China's Fu Haifeng, left, and Cai Yun, play against Australia's Ross Smith and Glenn Warfe, unseen, at a men's doubles badminton match of the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Saurabh Das)

Norway's Tarjei Skarlund dives for the ball during a beach volleyball match against Brazil at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Dave Martin)

during the second half of a preliminary women's basketball game at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Eric Gay)

Algeria's Abelmalek Rahou leaves the ring after a middle weight 75-kg preliminary boxing match against Australia's Jess Ross at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Patrick Semansky)

Dominican Republic's William Encarnacion Alcantar fights Gabon's Braexir Lemboumba, right, during a bantam weight 56-kg preliminary boxing match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Patrick Semansky)

Turkey's Adem Kilicci fights Turkmenistan's Nursahat Pazziyev, left, during a middle weight 75-kg preliminary boxing match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Patrick Semansky)

Mariama Signate of France tries to score during their women's handball preliminary match against Norway at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Matthias Schrader)

South Africa's Ayabonga Sonjica fights Bulgaria's Detelin Dalakliev, left, during a bantam weight 56-kg preliminary boxing match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Patrick Semansky)

USA's Terrell Gausha knocks down Armenia's Andranik Hakobyan, left, during a middle weight 75-kg preliminary boxing match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London. (AP Photo/Ivan Sekretarev)

Benin's Jacob Gnahoui (L) competes with Austria's Ludwig Paischer during their men's -60 kgs contest match of the judo event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FRANCK FIFE

Russia's leftback Victoria Zhilinskayte (R) jumps to shoot during the women's preliminaries Group A handball match Russia vs Angola for the London 2012 Olympics Games on July 28, 2012 at the Copper Box hall in London. AFP PHOTO/ JAVIER SORIANO

China's Yi Siling competes during the 10m Air Rifle Women qualification at the London 2012 Olympic Games at the Royal Artillery Barracks in London, July 28, 2012. AFP PHOTO/MARWAN NAAMANI

Russia's rightback Irina Bliznova jumps to shoot during the women's preliminaries Group A handball match Russia vs Angola for the London 2012 Olympics Games on July 28, 2012 at the Copper Box hall in London. AFP PHOTO/ JAVIER SORIANO

Russia's pivot Natalia Shipilova (L) vies with an Angolan player during the women's preliminaries Group A handball match Russia vs Angola for the London 2012 Olympics Games on July 28, 2012 at the Copper Box hall in London. AFP PHOTO/ JAVIER SORIANO

Russia's centreback Tatiana Khmyrova (C) shoots during the women's preliminaries Group A handball match Russia vs Angola for the London 2012 Olympics Games on July 28, 2012 at the Copper Box hall in London. AFP PHOTO/ JAVIER SORIANO

Tee Jing Yi of Malaysia returns a shuttle cock to Bae Yeon-Ju of South Korea during their women's single group play stage at the London 2012 Olympic Games in London on July 28, 2012. Bae won 16-21, 21-15, 21-12. AFP PHOTO / ADEK BERRY

Russia's goalkeeper Maria Sidorova (L) vies with an Angolan player during the women's preliminaries Group A handball match Russia vs Angola for the London 2012 Olympics Games on July 28, 2012 at the Copper Box hall in London. AFP PHOTO/ JAVIER SORIANO

France's Sofiane Milous (bottom) competes with Georgia's Betkili Shukvani during their men's -60 kgs contest match of the judo event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FRANCK FIFE

(LtoR) Britain's cyclists Ian Stannard, Christopher Froome and David Millar take the start of the men's road race cycle event at the London 2012 Olympic games on July 28, 2012. AFP PHOTO/Carl de Souza

US swimmer Michael Phelps gets ready prior to compete in the men's 400m individual medley heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / LEON NEAL

US swimmer Michael Phelps competes in the men's 400m individual medley heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / LEON NEAL

Russia's leftback Victoria Zhilinskayte jumps to shoot during the women's preliminaries Group A handball match Russia vs Angola for the London 2012 Olympics Games on July 28, 2012 at the Copper Box hall in London. AFP PHOTO/ JAVIER SORIANO

US swimmer Michael Phelps competes in the men's 400m individual medley heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / CHRISTOPHE SIMON

Bradley Wiggins of Britain leads the pack as they pass The Queen Victoria Memorial in London on July 28, 2012, at the start of the mens road race cycling event at The London 2012 Olympic Games. AFP PHOTO / MIGUEL MEDINA

US swimmer Michael Phelps gestures after he competed in the men's 400m individual medley heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FABRICE COFFRINI

US swimmer Ryan Lochte competes in the men's 400m individual medley heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / CHRISTOPHE SIMON

US swimmer Michael Phelps competes in the men's 400m individual medley heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FABRICE COFFRINI

Japan's Nishioka Shiho (L) fences against Hong Kong's Lin Po Heung during their women's foil fencing bout as part of the London 2012 Olympic games, on July 28, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

Australia's Christopher Burton on HP Leilani salutes the crowd after competing in the Dressage event of the Eventing competition of the 2012 London Olympics at the Equestrian venue in Greenwich Park, London, July 28, 2012. AFP PHOTO / JOHN MACDOUGALL

France's gymnast Hamilton Sabot competes on the parrallel bars during the men's qualification of the artistic gymnastics event of the London Olympic Games on July 28, 2012 at the 02 North Greenwich Arena in London. AFP PHOTO / BEN STANSALL

Japan's Natsumi Hoshi dives as she competes in the women's 100m butterfly heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / MARTIN BUREAU

Lebanon's Mona Shaito (L) fences against Egypt's Eman Elgammal during their women's foil fencing bout as part of the London 2012 Olympic games, on July 28, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

Egypt's Nourhan Amer (C) competes during the 10m air rifle women's qualification at the London 2012 Olympic Games at the Royal Artillery Barracks in London on July 28, 2012. AFP PHOTO/MARWAN NAAMANI

Hong Kong's Lin Po Heung (L) shakes hands with Japan's Nishioka Shiho at the end of their women's foil fencing bout as part of the London 2012 Olympic games, on July 28, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

France's gymnast Hamilton Sabot competes on the parrallel bars during the men's qualification of the artistic gymnastics event of the London Olympic Games on July 28, 2012 at the 02 North Greenwich Arena in London. AFP PHOTO / BEN STANSALL

Great Britain's Anna Bentley (L) fences against Canada's Monica Peterson during their women's foil fencing bout as part of the London 2012 Olympic games, on July 28, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

France's Laetitia Payet (L) gestures in front of Brazil's Sarah Menezes during their women's -48 kgs contest match of the judo event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FRANCK FIFE

Russia's Arsen Galstyan (front) competes with Monaco's Yann Siccardi during their men's -60 kgs contest match of the judo event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FRANCK FIFE

Chinese centre Chen Nan (L) vies with Czech forward Jana Vesela during the Women's preliminary round group A basketball match of the London 2012 Olympic Games China vs Czech Republic on July 28, 2012 at the basketball arena in London. China won 66 to 57. AFP PHOTO / MARK RALSTON

Nadiezda Zieba of Poland (L) is watched by her partner Robert Mateusiak of Poland as she plays a stroke during their badminton mixed doubles group match against Shintaro Ikeda and Reiko Shiota of Japan at The London 2012 Olympic Games in London on July 28, 2012. Poland's Robert Mateusiak and Nadiezda Zieba won 21-8, 22-20. AFP PHOTO/ADEK BERRY

Nadiezda Zieba of Poland (L) is watched by her partner Robert Mateusiak of Poland as she plays a stroke during their badminton mixed doubles group match against Shintaro Ikeda and Reiko Shiota of Japan at The London 2012 Olympic Games in London on July 28, 2012. Poland's Robert Mateusiak and Nadiezda Zieba won 21-8, 22-20. AFP PHOTO/ADEK BERRY

The peleton ride away from the line at the start of the men's road race cycle event in London on July 28, 2012, during The London 2012 Olympic Games. AFP PHOTO/Carl de Souza

Russia's Anastasia Vasina (R) and Anna Vozakova celebrate at Centre Court of the stadium in Horse Guards Parade at the end ot the second set of their women's beach volleyball preliminary phase - Pool B match of the London 2012 Olympic Games against China's Xue Chen and Zhang Xi, on July 28, 2012 .Vasina-Vozakova won 18-21, 21-14, 16-14. AFP PHOTO / DANIEL GARCIA

Czech centre Ilona Burgrova (R) vies with Chinese forward Ma Zengyu during the Women's preliminary round group A basketball match of the London 2012 Olympic Games China vs Czech Republic on July 28, 2012 at the basketball arena in London. China won 66 to 57. AFP PHOTO / MARK RALSTON

Poland's Robert Mateusiak (L) is watched by his partner Nadiezda Zieba of Poland as he plays a return during their badminton mixed doubles match against Shintaro Ikeda and Reiko Shiota of Japan at the London 2012 Olympic Games in London on July 28, 2012. Poland's Robert Mateusiak and Nadiezda Zieba won 21-8, 22-20. AFP PHOTO / ADEK BERRY

China's Zhang Xi (R) smashes in front of Russia's Anastasia Vasina and Anna Vozakova at Centre Court of the stadium in Horse Guards Parade during their women's beach volleyball preliminary phase - Pool B match of the London 2012 Olympic Games against China's Xue Chen and Zhang Xi, on July 28, 2012 .Vasina-Vozakova won 18-21, 21-14, 16-14. AFP PHOTO / DANIEL GARCIA

Spain's leftback Nely Alberto Francisca (R) vies with a South Korean player during the women's preliminaries Group B handball match Spain vs South Korea for the London 2012 Olympics Games on July 28, 2012 at the Copper Box hall in London. AFP PHOTO/ JAVIER SORIANO

Spain's leftback Beatriz Fernandez Ibanez (L) jumps to shoot during the women's preliminaries Group B handball match Spain vs South Korea for the London 2012 Olympics Games on July 28, 2012 at the Copper Box hall in London. AFP PHOTO/ JAVIER SORIANO

Canada's Ryan Cochrane, bearing a tattoo of the Olympic rings, competes in the men's 400m freestyle heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FABRICE COFFRINI

Hungary's Eva Csernoviczki (top) competes with Netherlands' Birgit Ente during their women's -48 kgs contest match of the judo event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / JOHANNES EISELE

The peleton rides down The Mall at the start of the men's road race cycle event in London on July 28, 2012, during the London 2012 Olympic Games. AFP PHOTO/POOL/DANIEL BEREHULAK

Russia's Anna Vozakova stretches for the ball during during her women's Beach Volleyball preliminary phase - Pool B match against Xue Chen and Zhang Xi of China of The London 2012 Olympic Games on The Centre Court at Horse Guards Parade London on July 28, 2012. Vasina and Vozakova won 18-21, 21-14, 16-14. AFP PHOTO / DANIEL GARCIA

Poland's Mateusz Sawrymowicz competes in the men's 400m freestyle heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / LEON NEAL

China's Sun Yang competes in the men's 400m freestyle heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / LEON NEAL

South Korea's Nam Hyun Hee (L) fences against Ukraine's Olga A. Leleyko during their women's foil fencing bout as part of the London 2012 Olympic games, on July 28, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

Swimmers dive as they compete in the men's 400m freestyle heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / EMMANUEL DUNAND

Russia's Alexandr Nikolaenko (R) watches as his partner Valeria Sorokina of Russia plays a stroke during their badminton mixed doubles match against Britain's Chris Adcock and Imogen Bankier at The London 2012 Olympic Games in London on July 28, 2012. Nikolaenko and Sorokina won 14-21, 21-9, 21-18. AFP PHOTO / ADEK BERRY

(L-R) Germany's Karl Schulze, Phillipp Wende, Lauritz Schoof and Tim Grohmann compete in the men's quadruple sculls heat 3 of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on July 28, 2012. AFP PHOTO / ERIC FEFERBERG

Sweden's defender Sara Thunebro (L) challenges Japan's forward Yuki Ogimi during their London 2012 Olympic Games women's football match at The City of Coventry Stadium in Coventry, central England, on July 28, 2012 . AFP PHOTO/PAUL ELLIS

China's gymnast Feng Zhe competes on the horizontal bar during the men's qualification of the artistic gymnastics event of the London Olympic Games on July 28, 2012 at the 02 North Greenwich Arena in London. AFP PHOTO / THOMAS COEX

The Italian men's cycle team pose ahead of the start of the men's road race cycle event in London on July 28, 2012, during The London 2012 Olympic Games. AFP PHOTO/Carl de Souza

The Spanish men's cycle team pose ahead of the start of the men's road race cycle event in London on July 28, 2012, during The London 2012 Olympic Games. AFP PHOTO/Carl de Souza

Uzbekistan's Rishod Sobirov reacts during his men's -60 kgs contest match against Brazil's Felipe Kitadai during the judo event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FRANCK FIFE

South Korea's Kim On A jumps to shoot during the women's preliminaries Group B handball match Spain vs South Korea for the London 2012 Olympics Games on July 28, 2012 at the Copper Box hall in London. AFP PHOTO/ JAVIER SORIANO

US swimmer Dana Vollmer reacts after she competed in the women's 100m butterfly heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FABRICE COFFRINI

US swimmer Dana Vollmer competes in the women's 100m butterfly heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / EMMANUEL DUNAND

New Zealand's Eric Murray and Hamish Bond compete in the men's pair heat 1 of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on July 28, 2012. AFP PHOTO / ERIC FEFERBERG

France's Astrid Guyart (R) fences against Egypt's Eman Gaber duringtheir women's foil fencing bout as part of the London 2012 Olympic games, on July 28, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

Canadian centre Krista Phillips (L) vies with Russian guard Becky Hammon during the Women's preliminary round group B basketball match of the London 2012 Olympic Games Canada vs Russia on July 28, 2012 at the basketball arena in London. AFP PHOTO / MARK RALSTON

Great Britain's Helen Glover and Heather Stanning are pictured after competing in the women's pair heat 1 of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on July 28, 2012. AFP PHOTO / ERIC FEFERBERG

The peleton ride past Buckingham Palace in London on July 28, 2012, during the men's road race cycle event of the London 2012 Olympic Games. AFP PHOTO/ MANAN VATSYAYANA

France's Astrid Guyart (R) fences against Egypt's Eman Gaber during their women's foil fencing bout as part of the London 2012 Olympic games, on July 28, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

Serbia's Stefana Veljkovic reacts during the women's volleyball match between Serbia and China in the 2012 London Olympic Games in London on July 28, 2012. AFP PHOTO/KIRILL KUDRYAVTSEV

Serbia's players react during the women's volleyball match between Serbia and China in the 2012 London Olympic Games in London on July 28, 2012. AFP PHOTO/KIRILL KUDRYAVTSEV

Korea's Gwang-Hyeon Choi (L) competes with Russia's Arsen Galstyan during their men's -60 kgs contest match of the judo event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FRANCK FIFE

Korea's Gwang-Hyeon Choi reacts after loosing against Russia's Arsen Galstyan during their men's -60 kgs contest match of the judo event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FRANCK FIFE

Brazil's Felipe Silva checks the scoreboard after he competed in the men's 100m breaststroke heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / CHRISTOPHE SIMON

China's Zhang Xian (R) sets during the women's volleyball match between Serbia and China for The 2012 London Olympic Games in London on July 28, 2012. AFP PHOTO/KIRILL KUDRYAVTSEV

China's Yi Siling celebrates after winning the 10m Air Rifle Women qualification at the London 2012 Olympic Games at the Royal Artillery Barracks in London, July 28, 2012. AFP PHOTO/MARWAN NAAMANI

China's Guan Xin (c) vies with Czech Republic's Ilona Burgrova during the Women's preliminary round group A basketball match of the London 2012 Olympic Games China vs Czech Republic on July 28, 2012 at the basketball arena in London. China won 66 to 57. AFP PHOTO / POOL / SERGIO PEREZ

(R-L) France's Benjamin Chabanet, Matthieu Androdias, Pierre-Jean Peltier and Adrien Hardy compete in the men's quarduple sculls heat 1 of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on July 28, 2012. AFP PHOTO / ERIC FEFERBERG

South Korea's Nam Hyun Hee (L) fences against Ukraine's Olga A. Leleyko during their women's foil fencing bout as part of the London 2012 Olympic games, on July 28, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

Brazil's Sarah Menezes (L) competes with China's Wu Shugen during their women's -48 kgs contest match of the judo event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / JOHANNES EISELE

(FromL) South Korea's centreback Jung Jihae, pivot Kim Cha Youn and leftback Gwon Han Na celebrate their victory on Spain by 31-27 at the end of the women's preliminaries Group B handball match Spain vs South Korea for the London 2012 Olympics Games on July 28, 2012 at the Copper Box hall in London. AFP PHOTO/ JAVIER SORIANO

China's Zhang Fan (C) vie with Czech Republic's Hana Horakova (L), Jana Vesela (2nd L), Eva Viteckova (4th L) and Ilona Burgrova (R) during the Women's preliminary round group A basketball match of the London 2012 Olympic Games China vs Czech Republic on July 28, 2012 at the basketball arena in London. China won 66 to 57. AFP PHOTO / POOL / SERGIO PEREZ

South Korea's goalkeeper Ju Hui tries to stop a shot during the women's preliminaries Group B handball match Spain vs South Korea for the London 2012 Olympics Games on July 28, 2012 at the Copper Box hall in London. South Korea won 31-26. AFP PHOTO/ JAVIER SORIANO

US fencer Nicole Ross (L) fences against Tunisia's Ines Boubakri during their women's foil fencing bout as part of the London 2012 Olympic games, on July 28, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

The peloton race along The Mall past the Queen Victoria Monument in central London on July 28, 2012 at the start of the men's road race event of the London 2012 Olympic Games. AFP PHOTO / POOL - Mike Egerton

TOPSHOTS The peleton rides down The Mall at the start of the men's road race cycle event in London on July 28, 2012, during the London 2012 Olympic Games. AFP PHOTO/POOL/DANIEL BEREHULAK

TOPSHOTS Russia's Anastasia Vasina (R) and Anna Vozakova celebrate at Centre Court of the stadium in Horse Guards Parade at the end ot the second set of their women's beach volleyball preliminary phase - Pool B match of the London 2012 Olympic Games against China's Xue Chen and Zhang Xi, on July 28, 2012 .Vasina-Vozakova won 18-21, 21-14, 16-14. AFP PHOTO / DANIEL GARCIA

TOPSHOTS Georgia's Betkili Shukvani (L) competes with Australia's Arnie Dickins during their men's -60 kgs contest match of the judo event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / JOHANNES EISELE

TOPSHOTS Austria's Ludwig Paischer (bottom) competes with Uzbekistan's Rishod Sobirov during their men's -60 kgs contest match of the judo event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / FRANCK FIFE

TOPSHOTS Swimmers dive as they compete in the men's 400m freestyle heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. AFP PHOTO / EMMANUEL DUNAND

TOPSHOTS Serbia's Stefana Veljkovic vies for the ball with China's Wei Quiyue during the women's volleyball match between Serbia and China for The 2012 London Olympic Games in London on July 28, 2012. AFP PHOTO/KIRILL KUDRYAVTSEV

Slovakia's Michal Martikan practises during a Canoe Slalom training session on July 28, 2012 at " Lee Valley Water Park", in London. AFP PHOTO OLIVIER MORIN

Japan's midfielder Aya Miyama (R) and Sweden's defender Emma Berglund fight for the ball during the London 2012 Olympic women's football match between Japan and Sweden on July 28, 2012 at The City of Coventry Stadium in Coventry, central England. AFP PHOTO/PAUL ELLIS

TOPSHOTS South Korea's Olympic and world champion Park Tae-Hwan gestures after he competed in the men's 400m freestyle heats swimming event at the London 2012 Olympic Games on July 28, 2012 in London. Park was sensationally disqualified after winning his 400-metre freestyle heat on the opening day of the swimming competition at the London Olympics. AFP PHOTO / FABRICE COFFRINI