United States' Ryan Lochte starts in a men's 200-meter individual medley at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Wednesday, Aug. 1, 2012. (AP Photo/Matt Slocum)

China's Li Xiaoxia faces China's Ding Ning, right, in the women's gold medal table tennis match at the 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in London. (AP Photo/Sergei Grits)

Olympics competitors sail on RS:X windsurfer during the start of the race 3 at the London 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in Weymouth and Portland, England. (AP Photo/Francois Mori)

Kohei Uchimura of Japan performs on the floor exercises during the men's gymnastics all-around at the North Greenwich Arena on Aug. 1, 2012. Three-time world champion finally grabbed his first Olympic gold medal. 23-year-old Uchimura won wtih 92.690 points. ( The Yomiuri Shimbun via AP Images )

Kohei Uchimura of Japan performs on the vault during the men's gymnastics all-around at the North Greenwich Arena on Aug. 1, 2012. Three-time world champion finally grabbed his first Olympic gold medal. 23-year-old Uchimura won wtih 92.690 points. ( The Yomiuri Shimbun via AP Images )

PICTURE TAKEN WITH A ROBOTIC CAMERA Poland's Radoslaw Kawecki competes during the men's 200m backstroke heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / FRANCOIS XAVIER MARIT

PICTURE TAKEN WITH A ROBOTIC CAMERA Poland's Radoslaw Kawecki competes during the men's 200m backstroke heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / FRANCOIS XAVIER MARIT

PICTURE TAKEN WITH A ROBOTIC CAMERA Hungary's Peter Bernek competes during the men's 200m backstroke heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / FRANCOIS XAVIER MARIT

Poland's Katarzyna Wilk competes in the women's 100m freestyle heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / GABRIEL BOUYS

US swimmer Tyler Clary is seen behind a little flag with the London Olympic Games logo before the men's 200m backstroke heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / GABRIEL BOUYS

PICTURE TAKEN WITH A ROBOTIC CAMERA US swimmer Michael Phelps competes in the men's 200m individual medley heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / FRANCOIS XAVIER MARIT

PICTURE TAKEN WITH A ROBOTIC CAMERA US swimmer Michael Phelps competes in the men's 200m individual medley heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / FRANCOIS XAVIER MARIT

PICTURE TAKEN WITH UNDERWATER CAMERA Brazil's Thiago Pereira, US swimmer Ryan Lochte and Germany's Markus Deibler compete during the men's 200m individual medley heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / FRANCOIS XAVIER MARIT

US swimmer Ryan Lochte competes in the men's 200m backstroke heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / CHRISTOPHE SIMON

US swimmer Michael Phelps takes off his cap after the men's 200m individual medley heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / MARTIN BUREAU

Hungary's Laszlo Cseh competes in the men's 200m individual medley heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / MARTIN BUREAU

Hungary's Laszlo Cseh competes in the men's 200m individual medley heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / MARTIN BUREAU

The tattoo of Brazil's Thiago Pereira is seen after the men's 200m individual medley heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / FABRICE COFFRINI

Hungary's Laszlo Cseh competes in the men's 200m individual medley heats swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / CHRISTOPHE SIMON

Lithuania's Karolis Bauza (white) competes with France's Romain Buffet (blue) during their men's -90kg judo contest match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

China's Fei Chen (white) competes with Poland's Katarzyna Klys (blue) during their women's -70kg judo contest match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / JOHANNES EISELE

China's Fei Chen (white) competes with Poland's Katarzyna Klys (blue) during their women's -70kg judo contest match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / JOHANNES EISELE

China's Fei Chen (white) competes with Poland's Katarzyna Klys (blue) during their women's -70kg judo contest match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / JOHANNES EISELE

Greece's Ilias Iliadis reacts after losing his men's -90kg judo contest quarter final match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / JOHANNES EISELE

(L-R) Poland's Kamila Socko, Joanna Leszczynska, Sylwia Lewandowska and Natalia Madaj are pictured after arriving in second place in the women's quadruple sculls final B of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / DAMIEN MEYER

US's Kristin Armstrong celebrates after winning the gold medal in the London 2012 Olympic Games road cycling women's individual time trial event in London on August 1, 2012. AFP PHOTO / CARL DE SOUZA

Great Britain's Helen Glover (L) and Heather Stanning celebrate after winning the women's pair final A and with it the gold medal of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / DAMIEN MEYER

Great Britain's Helen Glover (L) and Heather Stanning celebrate after winning the women's pair final A and with it the gold medal of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / DAMIEN MEYER

Australia's Kate Hornsey (R) and Sarah Tait compete in the women's pair final A to win the silver medal in the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / POOL / ERIC FEFERBERG

Germany's rowers celebrate after winning the gold medal in the men's eight final A of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / POOL / ERIC FEFERBERG

Japan's Kasumi Ishikawa plays a return during her table tennis women's bronze medal singles match against Singapore's Feng Tianwei for The London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Singapore's Feng Tianwei (R) plays a return during her table tennis women's bronze medal singles match against Japan's Kasumi Ishikawa for The London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Louise Laursen of Denmark competes in her women's individual archery 1/16 eliminations match against Khatuna Lorig of the US during the women's individual archery on day 5 of the London 2012 Olympic Games at Lord's Cricket Ground in London on August 1, 2012. AFP PHOTO / BEN STANSALL

Louise Laursen of Denmark reacts in her women's individual archery 1/16 eliminations match against Khatuna Lorig of the US during the women's individual archery on day 5 of the London 2012 Olympic Games at Lord's Cricket Ground in London on August 1, 2012. AFP PHOTO / BEN STANSALL

Germany's Kerstin Thiele celebrates after winning her women's -70kg judo contest repechage match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Germany's Kerstin Thiele celebrates with her coach after winning her women's -70kg judo contest repechage match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / JOHANNES EISELE

Germany's Kerstin Thiele celebrates with her coach after winning her women's -70kg judo contest repechage match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / JOHANNES EISELE

(L-R) Ukraine's Kateryna Tarasenko, Nataliya Dovgodko, Anastasiia Kozhenkova and Yana Dementieva celebrate after winning the gold medal in the women's quadruple sculls final A of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / DAMIEN MEYER

Singapore's Feng Tianwei celebrates winning a point during her table tennis women's bronze medal singles match against Japan's Kasumi Ishikawa for The London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Japan's Kasumi Ishikawa speaks to her coach during her table tennis women's bronze medal singles match against Singapore's Feng Tianwei for The London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Singapore's Feng Tianwei celebrates winning a point during her table tennis women's bronze medal singles match against Japan's Kasumi Ishikawa for The London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Canada's Sandra Sassine (L) fences against Poland's Aleksandra Socha during their Women's sabre bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

South Korea's Jung Jinsun celebrates his victory over Germany's Jorg Fiedler at the end of their Men's epee bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

South Korea's Jung Jinsun celebrates his victory over Germany's Jorg Fiedler at the end of their Men's epee bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

A helmet is seen on the field prior to a Women's sabre bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

Great Britain's rower Alex Partridge gives one last push towards the line as they claimed the bronze medal in the men's eight final A of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / POOL / MATT WRITTLE

Japan's Kasumi Ishikawa reacts after defeat in her table tennis women's bronze medal singles match against Singapore's Feng Tianwei for The London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. Feng won 11-9, 11-6, 11-6, 11-5. AFP PHOTO / SAEED KHAN

Germany's team celebrates after winning the gold medal in the men's eight final A of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / POOL / ALEXANDER HASSENSTEIN

Germany's team powers towards the line to claim the gold medal in the men's eight final A of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / POOL / ALEXANDER HASSENSTEIN

Germany's team celebrates after winning the gold medal in the men's eight final A of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / POOL / ALEXANDER HASSENSTEIN

Germany's team celebrates after winning the gold medal in the men's eight final A of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / POOL / ALEXANDER HASSENSTEIN

Great Britain's team reacts after winning the bronze medal in the men's eight final A of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / POOL / ALEXANDER HASSENSTEIN

Great Britain's rower Alex Partridge (R) reacts after winning the bronze medal in the men's eight final A of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / POOL / ALEXANDER HASSENSTEIN

Colombia's Yuri Alvear (white) competes with China's Fei Chen (blue) during their women's -70kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Colombia's Yuri Alvear (white) competes with China's Fei Chen (blue) during their women's -70kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Colombia's Yuri Alvear (white) competes with China's Fei Chen (blue) during their women's -70kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Colombia's Yuri Alvear (white) competes with China's Fei Chen (blue) during their women's -70kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Singapore's Feng Tianwei (FRONT) waits to receive a return during her table tennis women's bronze medal singles match against Japan's Kasumi Ishikawa (TOP) for The London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. Feng won 11-9, 11-6, 11-6, 11-5. AFP PHOTO / SAEED KHAN

China's Li Xiaoxia gestures during her table tennis women's gold medal singles match against compatriot Ding Ning of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Colombia's Yuri Alvear celebrates after winning her women's -70kg judo contest bronze medal match during the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Colombia's Yuri Alvear celebrates after winning her women's -70kg judo contest bronze medal match during the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Greece's Vassiliki Vougiouka (L) fences against Poland's Aleksandra Socha during their Women's sabre bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

Greece's Vassiliki Vougiouka (L) fences against Poland's Aleksandra Socha during their Women's sabre bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

Greece's Vassiliki Vougiouka (L) fences against Poland's Aleksandra Socha during their Women's sabre bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

Colombia's Yuri Alvear celebrates after winning her women's -70kg judo contest bronze medal match during the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / JOHANNES EISELE

Colombia's Yuri Alvear celebrates after winning her women's -70kg judo contest bronze medal match during the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / JOHANNES EISELE

China's Ding Ning watches the ball as she serves during her table tennis women's gold medal singles match against compatriot Li Xiaoxia of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Colombia's Yuri Alvear (white) scores a waza-ari against China's Fei Chen during their women's -70kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / JOHANNES EISELE

China's Li Xiaoxia celebrates winning a point during her table tennis women's gold medal singles match against compatriot Ding Ning of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

China's Ding Ning plays a return during her table tennis women's gold medal singles match against compatriot Li Xiaoxia of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Netherlands' Edith Bosch (white) competes with Korea's Hwang Ye-Sul (blue) during their women's -70kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

China's Li Xiaoxia gestures during her table tennis women's gold medal singles match against compatriot Ding Ning of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Netherlands' Edith Bosch (white) competes with Korea's Hwang Ye-Sul (blue) during their women's -70kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Netherlands' Edith Bosch celebrates after winning her women's -70kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Netherlands' Edith Bosch celebrates after winning her women's -70kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Netherlands' Edith Bosch celebrates after winning her women's -70kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / JOHANNES EISELE

Korea's Hwang Ye-Sul reacts during her her women's -70kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Gold medalist Italy's Daniele Molmenti (C) celebrates next to Poland's Mateusz Polaczyk (L), Spain's Samuel Hernanz (2dL) and silver medalist Czech's Vavrinec Hradilek (R) after the Kayak Single Men final at the " Lee Valley White Water Centre", on August 1, 2012 in London, on day 5 of the London 2012 Olympic Games. AFP PHOTO OLIVIER MORIN

TOPSHOTS China's Ding Ning watches the ball as she serves during her table tennis women's gold medal singles match against compatriot Li Xiaoxia of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

China's Ding Ning gestures during her table tennis women's gold medal singles match against compatriot Li Xiaoxia of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

China's Li Xiaoxia serves during her table tennis women's gold medal singles match against compatriot Ding Ning of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Greece's Ilias Iliadis celebrates after winning his men's -90kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Greece's Ilias Iliadis celebrates after winning his men's -90kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

(L-R) Germany's Annekatrin Thiele, Carina Baer, Julia Richter and Britta Oppelt compete to win the silver medal in the women's quadruple sculls final A of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / NATACHA PISARENKO

(R-L) Ukraine's Yana Dementieva, Anastasiia Kozhenkova, Nataliya Dovgodko, and Kateryna Tarasenko compete to win the gold medal in the women's quadruple sculls final A of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 1, 2012. AFP PHOTO / NATACHA PISARENKO

China's Ding Ning serves during her table tennis women's gold medal singles match against compatriot Li Xiaoxia of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

China's Ding Ning serves during her table tennis women's gold medal singles match against compatriot Li Xiaoxia of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Japan's Masashi Nishiyama (white) competes with Russia's Kirill Denisov (blue) during their men's -90kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

Japan's Masashi Nishiyama (white) competes with Russia's Kirill Denisov (blue) during their men's -90kg judo contest bronze medal match of the London 2012 Olympic Games on August 1, 2012 at the ExCel arena in London. AFP PHOTO / FRANCK FIFE

China's Li Xiaoxia (L) serves during her table tennis women's gold medal singles match against compatriot Ding Ning of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

China's Ding Ning gestures as she celebrates a point during her table tennis women's gold medal singles match against compatriot Li Xiaoxia of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

China's Ding Ning looks up during her table tennis women's gold medal singles match against compatriot Li Xiaoxia of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

China's Ding Ning reacts during her table tennis women's gold medal singles match against compatriot Li Xiaoxia of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

China's Ding Ning reacts during her table tennis women's gold medal singles match against compatriot Li Xiaoxia of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

China's Li Xiaoxia plays a return during her table tennis women's gold medal singles match against compatriot Ding Ning of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Britain's Bradley Wiggins celebrates after winning the gold medal at the end of the London 2012 Olympic Games men's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / ODD ANDERSEN

China's Li Xiaoxia gestures as she celebrates victory in her table tennis women's gold medal singles match against compatriot Ding Ning of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. Li won 11-8, 14-12, 8-11, 11-6, 11-4. AFP PHOTO / SAEED KHAN

China's Li Xiaoxia gestures as she celebrates victory in her table tennis women's gold medal singles match against compatriot Ding Ning of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. Li won 11-8, 14-12, 8-11, 11-6, 11-4. AFP PHOTO / SAEED KHAN

Britain's Bradley Wiggins celebrates winning the gold medal after competing in the London 2012 Olympic Games men's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / ODD ANDERSEN

China's Ding Ning looks on during her table tennis women's gold medal singles match against compatriot Li Xiaoxia of the London 2012 Olympic Games at The Excel Centre in London on August 1, 2012. AFP PHOTO / SAEED KHAN

Britain's Bradley Wiggins approaches the finish like to win the gold medal after competing in the London 2012 Olympic Games men's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / ODD ANDERSEN

Britain's Bradley Wiggins celebrates winning the gold medal after competing in the London 2012 Olympic Games men's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / CARL DE SOUZA

US cyclist Kristin Armstrong celebrates winning the gold medal after competing in the London 2012 Olympic Games women's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / CARL DE SOUZA

Germany's Tony Martin races to win the silver medal in the London 2012 Olympic Games men's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / POOL /CHRISTOPHE ENA

Britain's Bradley Wiggins races to win the gold medal in the London 2012 Olympic Games men's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / POOL /CHRISTOPHE ENA

Agnieszka Radwanska (R) serves past partner Marcin Matkowski of Poland during their mixed doubles tennis match against Lleyton Hewitt and Samanta Stosur of Australia in London on August 1, 2012, at the London 2012 Olympic Games. AFP PHOTO / LUIS ACOSTA

Britain's Bradley Wiggins races to win the gold medal in the London 2012 Olympic Games men's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / POOL /CHRISTOPHE ENA

Germany's Tony Martin races to get the silver medal in the London 2012 Olympic Games men's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / POOL /CHRISTOPHE ENA

Kristin Armstrong of the US sprints to the finish line to win the gold medal in the London 2012 Olympic Games women's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / ODD ANDERSEN

Germany's Judith Arndt sprints to the finish line to win the silver medal in the London 2012 Olympic Games women's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / ODD ANDERSEN

Germany's Judith Arndt sprints to the finish line to win the silver medal in the London 2012 Olympic Games women's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / ODD ANDERSEN

Russia's Olga Zabelinskaya sprints to the finish line to win the bronze medal in the London 2012 Olympic Games women's individual time trial road cycling event in London on August 1, 2012. AFP PHOTO / ODD ANDERSEN

US fencer Weston Kelsey (R) fences against South Korea's Jung Jinsun during their Men's epee bronze medal bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

US fencer Weston Kelsey (R) fences against South Korea's Jung Jinsun during their Men's epee bronze medal bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

US fencer Weston Kelsey (R) fences against South Korea's Jung Jinsun during their Men's epee bronze medal bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

Romania's Roxana Daniela Cocos competes for the silver medal during the women's 69kg group A weightlifting event at The Excel Centre in London on August 1, 2012 during the London 2012 Olympic Games. AFP PHOTO / YURI CORTEZ

Romania's Roxana Daniela Cocos celebrates after winning the silver medal during the women's 69kg group A weightlifting event at The Excel Centre in London on August 1, 2012 during the London 2012 Olympic Games. AFP PHOTO / YURI CORTEZ

Romania's Roxana Daniela Cocos celebrates after winning the silver medal during the women's 69kg group A weightlifting event at The Excel Centre in London on August 1, 2012 during the London 2012 Olympic Games. AFP PHOTO / YURI CORTEZ

North Korea's Rim Jong Sim smiles as she falls while competiting for the gold medal during the women's 69kg group A weightlifting event at The Excel Centre in London on August 1, 2012 during the London 2012 Olympic Games. AFP PHOTO / YURI CORTEZ

Romania's Roxana Daniela Cocos celebrates after winning the silver medal during the women's 69kg group A weightlifting event at The Excel Centre in London on August 1, 2012 during the London 2012 Olympic Games. AFP PHOTO / YURI CORTEZ

South North Korea's Rim Jong Sim competes for the gold medal during the women's 69kg group A weightlifting event at The Excel Centre in London on August 1, 2012 during the London 2012 Olympic Games. AFP PHOTO / YURI CORTEZ

Japan's gymnast Kohei Uchimura performs on the rings during the men's individual all-around competition of the artistic gymnastics event of the London Olympic Games on August 1, 2012 at the 02 North Greenwich Arena in London. Japanese superstar Kohei Uchimura romped to the individual all-around gymnastics title to claim his first Olympic gold medal while Germany's Marcel Nguyen took the silver medal, with Danell Leyva of the United States winning the bronze. AFP PHOTO / EMMANUEL DUNAND

South Korea's Jung Jinsun celebrates his victory over US fencer Weston Kelsey (R) fences against at the end of their Men's epee bronze medal bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

South Korea's Jung Jinsun celebrates his victory over US fencer Weston Kelsey at the end of their Men's epee bronze medal bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

South Korea's Jung Jinsun celebrates his victory over US fencer Weston Kelsey at the end of their Men's epee bronze medal bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA

South Korea's Jung Jinsun celebrates his victory over US fencer Weston Kelsey at the end of their Men's epee bronze medal bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

US fencer Weston Kelsey reacts after losing to South Korea's Jung Jinsun at the end of their Men's epee bronze medal bout as part of the fencing event of London 2012 Olympic games, on August 1, 2012 at the ExCel centre in London. AFP PHOTO / ALBERTO PIZZOLI

Romania's Roxana Daniela Cocos celebrates after winning the silver medal during the women's 69kg group A weightlifting event at The Excel Centre in London on August 1, 2012 during the London 2012 Olympic Games. AFP PHOTO / YURI CORTEZ