Poland's Natalia Pacierpnik competes in the women's kayak slalom single on July 30, 2012 at " Lee Valley Water Park" in London during the London 2012 Olympic Games. AFP PHOTO OLIVIER MORIN

Poland's Natalia Pacierpnik competes in the women's kayak slalom single on July 30, 2012 at " Lee Valley Water Park" in London during the London 2012 Olympic Games. AFP PHOTO OLIVIER MORIN

Grzegorz Fijalek of Poland (R) smashes the ball past Jacob Gibb of the US during his men's beach volleyball preliminary phase Pool D match against Jacob Gibb and Sean Rosenthal of the US on The Centre Court Stadium in Horse Guards Parade in London on July 30, 2012, for the London 2012 Olympic Games. AFP PHOTO / DANIEL GARCIA

Poland's Magdalena Piekarska (L) Switzerland's Tiffany Geroudet during their Women's Epee fencing bout as part of the London 2012 Olympic games, on July 30, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

Sean Rosenthal from the US misses the ball during the men's beach volleyball preliminary phase Pool D match against Poland's Grzegorz Fijalek and Mariusz Prudel on The Centre Court Stadium in Horse Guards Parade in London on July 30, 2012, for the London 2012 Olympic Games. AFP PHOTO / DANIEL GARCIA

Ukraine's Yana Shemyakina celebrates her victory over Germany's Britta Heidemann at the end of her Women's Epee gold medal bout as part of the fencing event of London 2012 Olympic games, on July 30, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

Ukraine's Yana Shemyakina celebrates her victory over Germany's Britta Heidemann at the end of her Women's Epee gold medal bout as part of the fencing event of London 2012 Olympic games, on July 30, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

Germany's Britta Heidemann (down) Ukraine's Yana Shemyakina at the end of their Women's Epee gold medal bout as part of the fencing event of London 2012 Olympic games, on July 30, 2012 at the ExCel centre in London. AFP PHOTO / ANTONIN THUILLIER

China's Jin Chen returns a shot to Przemyslaw Wacha of Poland during their men's single badminton match at the London 2012 Olympic Games in London on July 30, 2012. AFP PHOTO/ MANAN VATSYAYANA

China's Jin Chen returns a shot to Przemyslaw Wacha of Poland during their men's single badminton match at the London 2012 Olympic Games in London on July 30, 2012. AFP PHOTO/ MANAN VATSYAYANA

China's Jin Chen returns a shot to Przemyslaw Wacha of Poland during their men's single badminton match at the London 2012 Olympic Games in London on July 30, 2012. AFP PHOTO/ MANAN VATSYAYANA

China's Jin Chen returns a shot to Przemyslaw Wacha of Poland during their men's single badminton match at the London 2012 Olympic Games in London on July 30, 2012. AFP PHOTO/ MANAN VATSYAYANA

Kasumi Ishikawa of Japan (L) returns to Li Qian of Poland during their London 2012 Olympic Games women's singles table tennis match at the Excel centre in London on July 30, 2012. AFP Photo / Saeed Khan

Kasumi Ishikawa of Japan celebrates scoring a point against Li Qian of Poland during their London 2012 Olympic Games women's singles table tennis match at the Excel centre in London on July 30, 2012. AFP Photo / Saeed Khan

Kasumi Ishikawa of Japan celebrates scoring a point against Li Qian of Poland during their London 2012 Olympic Games women's singles table tennis match at the Excel centre in London on July 30, 2012. AFP Photo / Saeed Khan

Kasumi Ishikawa of Japan serves to Li Qian of Poland during their London 2012 Olympic Games women's singles table tennis match at the Excel centre in London on July 30, 2012. AFP Photo / Saeed Khan

Kasumi Ishikawa of Japan serves to Li Qian of Poland during their London 2012 Olympic Games women's singles table tennis match at the Excel centre in London on July 30, 2012. AFP Photo / Saeed Khan

Qian Li of Poland serves to Kasumi Ishikawa of Japan during their London 2012 Olympic Games women's singles table tennis match at the Excel centre in London on July 30, 2012. AFP Photo / Saeed Khan

Qian Li of Poland serves to Kasumi Ishikawa of Japan during their London 2012 Olympic Games women's singles table tennis match at the Excel centre in London on July 30, 2012. AFP Photo / Saeed Khan

Poland's Dominik Zycki and Mateusz Kusznierewicz cry out as they approach the mark in the Star sailing class at the London 2012 Olympic Games, in Weymouth on July 30, 2012. AFP PHOTO/William WEST

Bildnummer: 11073289 Datum: 29.07.2012 Copyright: imago/Colorsport Football - London 2012 Olympics - Brazil vs. Belarus Brazil s Neymar at Old Trafford, Manchester PUBLICATIONxNOTxINxUK ; Fussball Landerspiel Nationalteam OS Sommer Spiele Sommerspiele 2012 London Einzelbild Freisteller Aktion xns x0x 2012 hoch premiumd Image number 11073289 date 29 07 2012 Copyright imago Color Sports Football London 2012 Olympics Brazil vs Belarus Brazil s Neymar AT Old Trafford Manchester PUBLICATIONxNOTxINxUK Football international match National team OS Summer Games Summer Games 2012 London Single cut out Action shot xns x0x 2012 vertical premiumd

Bildnummer: 11073292 Datum: 29.07.2012 Copyright: imago/Colorsport Football - London 2012 Olympics - Brazil vs. Belarus Brazil s Oscar at Old Trafford, Manchester PUBLICATIONxNOTxINxUK ; Fussball Landerspiel Nationalteam OS Sommer Spiele Sommerspiele 2012 London Einzelbild Freisteller Aktion xns x0x 2012 hoch premiumd Image number 11073292 date 29 07 2012 Copyright imago Color Sports Football London 2012 Olympics Brazil vs Belarus Brazil s Oscar AT Old Trafford Manchester PUBLICATIONxNOTxINxUK Football international match National team OS Summer Games Summer Games 2012 London Single cut out Action shot xns x0x 2012 vertical premiumd

Bildnummer: 11073293 Datum: 29.07.2012 Copyright: imago/Colorsport Football - London 2012 Olympics - Brazil vs. Belarus Brazil s Marcelo at Old Trafford, Manchester PUBLICATIONxNOTxINxUK ; Fussball Landerspiel Nationalteam OS Sommer Spiele Sommerspiele 2012 London Einzelbild Freisteller Aktion xns x0x 2012 quer premiumd Image number 11073293 date 29 07 2012 Copyright imago Color Sports Football London 2012 Olympics Brazil vs Belarus Brazil s Marcelo AT Old Trafford Manchester PUBLICATIONxNOTxINxUK Football international match National team OS Summer Games Summer Games 2012 London Single cut out Action shot xns x0x 2012 horizontal premiumd

France's Jo-Wilfired Tsonga during the London Olympics in London, UK on July 29, 2012. Photo by Sindy Thomas/Agence Zoom/ABACAPRESS.COM # 329161_018

Russia's Maria Sharapova during the London Olympics in London, UK on July 29, 2012. Photo by Sindy Thomas/Agence Zoom/ABACAPRESS.COM # 329162_003

France's Jo-Wilfired Tsonga during the London Olympics in London, UK on July 29, 2012. Photo by Sindy Thomas/Agence Zoom/ABACAPRESS.COM # 329161_007

Diving Illustrations during during the 2012 London Olympics Games on July 29, 2012. Photo by Gouhier-Guibbaud-JMP/ABACAPRESS.COM # 329158_003

Bildnummer: 11076620 Datum: 30.07.2012 Copyright: imago/PanoramiC Charline Van Snick JUDO : Charline Van Snick - -48 kgs - JO 2012 - 29/07/2012 PhotoNews/Panoramic PUBLICATIONxNOTxINxFRAxITAxBEL ; Olympia London Olympische Spiele Sommerspiele Sommer Judo Fotoshooting privat xsp x1x 2012 hoch Highlight premiumd Image number 11076620 date 30 07 2012 Copyright imago Panoramic Charline van Snickers Judo Charline van Snickers 48 Jo 2012 29 07 2012 Photo News Panoramic PUBLICATIONxNOTxINxFRAxITAxBEL Olympia London Olympic Games Summer Games Summer Judo Photo shooting Private x1x 2012 vertical Highlight premiumd

Bildnummer: 11076621 Datum: 29.07.2012 Copyright: imago/PanoramiC Charline Van Snick JUDO : Charline Van Snick - -48 kgs - JO 2012 - 29/07/2012 PhotoNews/Panoramic PUBLICATIONxNOTxINxFRAxITAxBEL ; Olympia London Olympische Spiele Sommerspiele Sommer Judo Fotoshooting privat xsp x1x 2012 quer Highlight premiumd Image number 11076621 date 29 07 2012 Copyright imago Panoramic Charline van Snickers Judo Charline van Snickers 48 Jo 2012 29 07 2012 Photo News Panoramic PUBLICATIONxNOTxINxFRAxITAxBEL Olympia London Olympic Games Summer Games Summer Judo Photo shooting Private x1x 2012 horizontal Highlight premiumd

Bildnummer: 11076622 Datum: 29.07.2012 Copyright: imago/PanoramiC Charline Van Snick JUDO : Charline Van Snick - -48 kgs - JO 2012 - 29/07/2012 PhotoNews/Panoramic PUBLICATIONxNOTxINxFRAxITAxBEL ; Olympia London Olympische Spiele Sommerspiele Sommer Judo Fotoshooting privat xsp x1x 2012 quer Highlight premiumd Image number 11076622 date 29 07 2012 Copyright imago Panoramic Charline van Snickers Judo Charline van Snickers 48 Jo 2012 29 07 2012 Photo News Panoramic PUBLICATIONxNOTxINxFRAxITAxBEL Olympia London Olympic Games Summer Games Summer Judo Photo shooting Private x1x 2012 horizontal Highlight premiumd

Kohei Uchimura (JPN), JULY 30, 2012 - Artistic Gymnastics : Men's Qualification Horizontal Bar at North Greenwich Arena during the London 2012 Olympic Games in London, UK. (Photo by Enrico Calderoni/AFLO SPORT)

Kohei Uchimura (JPN), JULY 30, 2012 - Artistic Gymnastics : Men's Qualification Parallel Bars at North Greenwich Arena during the London 2012 Olympic Games in London, UK. (Photo by Enrico Calderoni/AFLO SPORT)

France's swimmer Yannick Angel won Men's 200m Freestyle Final at Aquatics Center in the Olympic Park in London on Monday, 30th July, 2012. LEHTIKUVA / Vesa Moilanen *** FINLAND OUT. NO THIRD PARTY SALES. ***

USA's swimmer Missy Franklin won Women's 100m Backstroke Final at Aquatics Center in the Olympic Park in London on Monday, 30th July, 2012. LEHTIKUVA / Vesa Moilanen *** FINLAND OUT. NO THIRD PARTY SALES. ***

Kazuhito Tanaka (JPN), JULY 30, 2012 - Artistic Gymnastics : Men's Qualification Parallel Bars at North Greenwich Arena during the London 2012 Olympic Games in London, UK. (Photo by Enrico Calderoni/AFLO SPORT)

Zhang Xi (right) and Xue Chen (China) are playing in women's beach volleyball match Switzerland vs. China during The London 2012 Olympic Games on Monday, 30th July, 2012. LEHTIKUVA / Vesa Moilanen *** FINLAND OUT. NO THIRD PARTY SALES. ***

Nadine Zumkeh (Switzerland) in women's beach volleyball match Switzerland vs. China during The London 2012 Olympic Games on Monday, 30th July, 2012. LEHTIKUVA / Vesa Moilanen *** FINLAND OUT. NO THIRD PARTY SALES. ***

Dancers perform during men's beach volleyball match Norway vs. Canada The London 2012 Olympic Games on Monday, 30th July, 2012. LEHTIKUVA / Vesa Moilanen *** FINLAND OUT. NO THIRD PARTY SALES. ***

Anu Nieminen of Finland competing against Tzu Ying Tai of Taiwan in the womens badmington group mathes in Wembley Arena on monday. LEHTIKUVA / Kimmo Mantyla *** FINLAND OUT. NO THIRD PARTY SALES. ***

Anu Nieminen of Finland competing against Tzu Ying Tai of Taiwan in the womens badmington group mathes in Wembley Arena on monday. LEHTIKUVA / Kimmo Mantyla *** FINLAND OUT. NO THIRD PARTY SALES. ***

Anu Nieminen of Finland competing against Tzu Ying Tai of Taiwan in the womens badmington group mathes in Wembley Arena on monday. LEHTIKUVA / Kimmo Mantyla *** FINLAND OUT. NO THIRD PARTY SALES. ***

Kohei Uchimura (JPN), JULY 30, 2012 - Artistic Gymnastics : Men's Qualification Vault at North Greenwich Arena during the London 2012 Olympic Games in London, UK. (Photo by Enrico Calderoni/AFLO SPORT)

Anu Nieminen of Finland competing against Tzu Ying Tai of Taiwan in the womens badmington group mathes in Wembley Arena on monday. LEHTIKUVA / Kimmo Mantyla *** FINLAND OUT. NO THIRD PARTY SALES. ***

Martin Spinnangr (Norway) and Martin Reader (Canada) are playing in men's beach volleyball match Norway vs. Canada The London 2012 Olympic Games on Monday, 30th July, 2012. LEHTIKUVA / Vesa Moilanen *** FINLAND OUT. NO THIRD PARTY SALES. ***

Dancers perform in men's beach volleyball match Norway vs. Canada The London 2012 Olympic Games on Monday, 30th July, 2012. LEHTIKUVA / Vesa Moilanen *** FINLAND OUT. NO THIRD PARTY SALES. ***

Josh Binstock (right) and Martin Reader (Canada) are playing in men's beach volleyball match Norway vs. Canada The London 2012 Olympic Games on Monday, 30th July, 2012. LEHTIKUVA / Vesa Moilanen *** FINLAND OUT. NO THIRD PARTY SALES. ***

Police offiers on guard at the entrance to the Olympic Athletes' Village in East London on Monday, 30th July, 2012. LEHTIKUVA / Timo Jaakonaho *** FINLAND OUT. NO THIRD PARTY SALES. ***

Olympic Games London 2012, Equestrian Cross Country, 30.07.2012 Clayton Fredericks (AUS), BENDIGO ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Equestrian Cross Country, 30.07.2012 Peter Thomsen (GER), BARNY ?? pixathlon ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Equestrian Cross Country, 30.07.2012 Equestrian Arena ?? pixathlon ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Equestrian Cross Country, 30.07.2012 Ingrid Klimke (GER), Butts Abraxxas ?? pixathlon ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Equestrian Cross Country, 30.07.2012 Samantha Albert (RSA), CARRAIG DUBH ?? pixathlon ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Equestrian Cross Country, 30.07.2012 Clayton Fredericks (AUS), BENDIGO ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Equestrian Cross Country, 30.07.2012 Michael Jung (GER), SAM ?? pixathlon ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Equestrian Cross Country, 30.07.2012 Jonelle Richards (AUS), FLINTSTAR ?? pixathlon ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Basketball Arena ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Cycling arena, Velodrom, Olympic Park ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Mens Hockey, Germany Illustration ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Mens Hockey, Germany - Belgium Riverbank Stadium, Team line up ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Mens Hockey, Riverbank Stadium ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Mens Hockey, gloves, Handschuhe ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Mens Hockey, Team Germany ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Mens Hockey, Team Belgium ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Mens Hockey, Team Belgium lines up ?? pixathlon fot. Pixathlon/REPORTER

Olympic Games London 2012, Mens Hockey, Team Belgium lines up ?? pixathlon fot. Pixathlon/REPORTER

Olympics: Basketball, National Team USA, London, 29.07.2012 Kevin Durant ?Epixathlon fot. Pixathlon/REPORTER

LONDON, Britain - Hiromi Miyake competes in the Olympic women's weightlifting 48-kilogram class, en route to the silver medal with a total of 197 kg, at ExCel London on July 28, 2012. (Kyodo)

LONDON, Britain - Japan's Saori Kimura spikes the ball during the first set of a match against Algeria in the women's volleyball tournament at Earls Court at the 2012 Olympic games on July 28, 2012. Japan beat Algeria 3-0. (Kyodo)

Australia's Emily Seebohm reacts after competing in the women's 100-meter backstroke swimming heat at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Matt Slocum)

Zara Phillips, of Great Britain, competes with her horse High Kingdom, in the equestrian eventing dressage phase at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/David Goldman)

Japan's Sho Sasaki returns a shuttle cock as he plays against Suriname's Virgil Soeroredjo at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Saurabh Das)

Boats from, bottom to top, Zimbabwe, Lithuania, Taiwan, Niger, and Iran wait to start in a men's rowing single sculls repechage in Eton Dorney, near Windsor, England, at the 2012 Summer Olympics, Sunday, July 29, 2012. (AP Photo/Natacha Pisarenko)

Britain's Mark McGivern (7) makes a diving save on a shot during a men's volleyball preliminary match against Bulgaria at the 2012 Summer Olympics Sunday, July 29, 2012, in London. (AP Photo/Chris O'Meara)

North Korea's Choi Bom Sin lifts during the men's 56-kg, group B, of weightlifting competttion at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Hassan Ammar)

Indonesia's Tontowi Ahmad, right, and Liliyana Natsir, play against South Korea's Lee Yong-dae and Ha Jung-eun, unseen, at a mixed doubles badminton match of the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Saurabh Das)

Zara Phillips, of Great Britain, competes with her horse High Kingdom, in the equestrian eventing dressage phase at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/David Goldman)

Fiji's Manueli Tulo lifts during the men's 56-kg, group B, weightlifting competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Hassan Ammar)

Zara Phillips from Great Britain reacts after she competes with her horse High Kingdom in the equestrian eventing dressage phase during the equestrian eventing competition at Greenwich Park, at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Markus Schreiber)

COVENTRY, England - Asuna Tanaka (R) of Japan vies for the ball after coming on as a substitute in the middle of second half of the Group F Women's Olympic soccer game between Japan and Sweden at the City of Coventry Stadium on July 28, 2012. On the left is Mana Iwabuchi. (Kyodo)

COVENTRY, England - Japan's Nahomi Kawasumi (2nd from R) fights for the ball during the second half of a Group F Women's Olympic soccer game against Sweden at the City of Coventry Stadium on July 28, 2012. The game end 0-0.(Kyodo)

COVENTRY, England - Homare Sawa (L) of Japan has a shot blocked by the Sweden goalkeeper during the second half of their Group F Women's Olympic soccer game at the City of Coventry Stadium on July 28, 2012. (Kyodo)

Goalkeeper Josip Pavic of Croatia is unable to stop a goal by Ioannis Fountoulis of Greece in a preliminary water polo match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Julio Cortez)

Pablo Allepuz Herrera, left, from Spain fights for a ball with Premysl Kubala, right, from Czech Republic during their Beach Volleyball match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Petr David Josek)

Greece water polo athletes look on during a preliminary water polo match against Croatia at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. Croatia won 8-6. (AP Photo/Julio Cortez)

South Korea's Ha Jung-eun and Lee Yong-dae, rear, play against Tontowi Ahmad and Liliyana Natsir in a mixed doubles badminton match and at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Andres Leighton)

Swimmers start in the first heat of the women's 100-meter backstroke at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Lee Jin-man)

Britain's Nathan French (10) spikes the ball past Bulgaria defenders, from left, Georgi Bratoev (1), Viktor Yosifov (12), and Todor Aleksiev (15) during a men's volleyball preliminary match at the 2012 Summer Olympics Sunday, July 29, 2012, in London. (AP Photo/Chris O'Meara)

Mexican gymnast Elsa Garcia Rodriguez Blancas performs on the balance beam during the Artistic Gymnastics women's qualification at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Gregory Bull)

India's Deepika Kumari shoots during the women's archery team competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Marcio Jose Sanchez)

Nigeria's Alade Aminu, right, blocks Tunisia's Marouan Kechrid (8) on a drive to the basket during a basketball game at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Charles Krupa)

Swimmers compete in the first heat of the women's 100-meter backstroke at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Daniel Ochoa De Olza)

Romy Tarangul of Germany celebrates her win over Natalia Kuziutina of Russia during the women's -52kg judo competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Paul Sancya)

Germany's Birgit Michels, left, and Michael Fuchs play against Chris Adcock and Imogen Bankier of Great Britain during a mixed doubles badminton match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Andres Leighton)

Iraq's Noor Amer Al Ameri pauses between shots during qualifiers for the women's 10-meter air pistol event at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Rebecca Blackwell)

New Zealand's Stacy Michelsen, left, along with her teammates, celebrates after scoring a goal during their preliminary round women's field hockey match against Australia at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Eranga Jayawardena)

North Korea's Choi Bom Sin lifts during the men's 56-kg, group B, weightlifting competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Mike Groll)

Belgium's Tom Goegebuer lifts during the men's 56-kg, group B, weightlifting competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Mike Groll)

Konstantinos Mourikis of Greece reacts after his shot was stop by goalkeeper Josip Pavic of Croatia in a preliminary water polo match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Julio Cortez)

Italy's Marta Menegatti returns the ball during a beach volleyball match against Russia at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Dave Martin)

Indonesia's Tontowi Ahmad, left, and Liliyana Natsir, play against South Korea's Lee Yong-dae and Ha Jung-eun, unseen, at a mixed doubles badminton match of the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Saurabh Das)

North Korea's Choi Bom Sin lifts during the men's 56-kg, group B, of weightlifting competttion at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Hassan Ammar)

Britain's Alison Williamson shoots during the women's archery team competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Marcio Jose Sanchez)

Algeria's Amina Rouba strokes in a women's rowing single sculls repechage in Eton Dorney, near Windsor, England, at the 2012 Summer Olympics, Sunday, July 29, 2012. (AP Photo/Natacha Pisarenko)

Ruta Meilutyte of Lithuania competes in a women's 100-meter backstroke swimming heat at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Daniel Ochoa De Olza)

Tera Van Beilen of Canada competes in a women's 100-meter breaststroke swimming heat at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/David J. Phillip)

Belgium's Lieselotte van Lindt, bottom, flicks a ball as Netherlands Carlien Dirkse van den Heuvel, right, tries to block, during their women's hockey competition preliminary round match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Eranga Jayawardena)

New Zealand's Ella Gunson, left, tries to control the ball against an attacking Emily Smith, right, of Australia during their women's hockey preliminaries at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Bullit Marquez)

New Zealand's Samantha Charlton races to her goal during their preliminaries match against Australia the women's hockey competition in the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Bullit Marquez)

Armen Nazaryan of Armenia (in blue) competes against Pawel Zagrodnik of Poland during the men's -66kg judo competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Paul Sancya)

France's Camille Lacourt competes in a men's 100-meter backstroke swimming heat at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Mark J. Terrill)

Swimmers start a men's 100-meter backstroke swimming heat at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Daniel Ochoa De Olza)

USA's James Williams competes against Russia's Nikolay Kovalev during the men's individual sabre round of 32 fencing at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Andrew Medichini)

Morocco's Sara El Bekri competes in a women's 100-meter breaststroke swimming heat at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/David J. Phillip)

Germany's Nicolas Limbach, right, and Poland's Adam Skrodzki compete during the men's individual sabre round of 32 fencing at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Andrew Medichini)

Leandro Cunha of Brazil competes against Pawel Zagrodnik of Poland (in blue) during the men's -66kg judo competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Paul Sancya)

Swedish gymnast Jonna Adlerteg performs on the balance beam during the Artistic Gymnastics women's qualification at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Gregory Bull)

A boat from the U.S., right, and a boat from Great Britain wait to start a women's rowing eight heat in Eton Dorney, near Windsor, England, at the 2012 Summer Olympics, Sunday, July 29, 2012. U.S. won and Great Britain arrived third. (AP Photo/Natacha Pisarenko)

Cycling enthusiasts cheer during the Women's Road Cycling race at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Christophe Ena)

Colin Oates of Great Britain reacts after winning his match against Tsagaanbaatar Khashbaatar of Mongolia during the men's -66kg judo competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Paul Sancya)

Egypt's Mohamed Salah (11) shrugs off a tackle by New Zealand's Adam Thomas in his way to score during their group C men's soccer match at the 2012 London Summer Olympics, Sunday, July 29, 2012 at Old Trafford Stadium in Manchester, England. (AP Photo/Jon Super)

Armen Nazaryan of Armenia (in blue) competes against Pawel Zagrodnik of Poland in the foreground as David Larose of France competes against Lasha Shavdatuashvili of Georgia (far mat) during the men's -66kg judo competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Paul Sancya)

Japan's Masashi Ebinuma, top, competes with Poland's Pawel Zagrodnik during a bronze medal match in the men's 66-kg judo competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Paul Sancya)

Poland's Aleksandra J Klejnowska-Krzywanska reacts during the women's 53-kg, group A, weightlifting competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Ng Han Guan)

Poland's Aleksandra J Klejnowska-Krzywanskareacts during the women's 53-kg, group A, weightlifting competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Hassan Ammar)

Poland's Aleksandra J Klejnowska-Krzywanskareacts during the women's 53-kg, group A, weightlifting competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Hassan Ammar)

Poland's Joanna Lochowska lifts during the women's 53-kg, group A, weightlifting competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Hassan Ammar)

Japan's Masashi Ebinuma competes with Poland's Pawel Zagrodnik, right, during a bronze medal match in the men's 66-kg judo competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Paul Sancya)

Japan's Masashi Ebinuma competes with Poland's Pawel Zagrodnik, right, during a bronze medal match in the men's 66-kg judo competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Paul Sancya)