Olympics: Day 4

LONDON, ENGLAND - JULY 31: Andrea Baldani of Italy competes against Byungchul Choi of Korea in the Men's Foil Individual Bronze Medal Bout against on Day 4 of the London 2012 Olympic Games at ExCeL on July 31, 2012 in London, England. (Photo by Lars Baron/Getty Images)

LONDON, ENGLAND - JULY 31: Silvana Saldarriaga of Peru chalks her hands prior to competing in the Women's 63kg Weightlifting final on Day 4 of the London 2012 Olympic Games at ExCeL on July 31, 2012 in London, England. (Photo by Laurence Griffiths/Getty Images)

LONDON, ENGLAND - JULY 31: Christinna Pedersen and Kamilla Rytter Juhl of Denmark celebrate victory in their Women's Doubles Badminton match against Yunlei Zhao and Qing Tian of China on Day 4 of the London 2012 Olympic Games at Wembley Arena on July 31, 2012 in London, England.. (Photo by Julian Finney/Getty Images)

LONDON, ENGLAND - JULY 31: Gevrise Emane of France (white) competes with Da-Woon Joung of Korea in the Women's -63 kg Judo on Day 4 of the London 2012 Olympic Games at ExCeL on July 31, 2012 in London, England. (Photo by Quinn Rooney/Getty Images)

LONDON, ENGLAND - JULY 31: Byungchul Choi of Korea celebrates winning his match against Jianfei Ma of China during the quaterfinals of the Men's Foil Individual on Day 4 of the London 2012 Olympic Games at ExCeL on July 31, 2012 in London, England. (Photo by Hannah Johnston/Getty Images)

LONDON, ENGLAND - JULY 31: Massimo Giacoppo #7 of Italy moivates his team-mates before the Men's Water Polo preliminary round Group A match against Greece on Day 4 of the London 2012 Olympic Games at Water Polo Arena on July 31, 2012 in London, England. (Photo by Streeter Lecka/Getty Images)

LONDON, ENGLAND - JULY 31: Sarah Barrow and Tonia Couch of Great Britain compete in the Women's Synchronised 10m Platform Diving on Day 4 of the London 2012 Olympic Games at the Aquatics Centre on July 31, 2012 in London, England. (Photo by Al Bello/Getty Images)

LONDON, ENGLAND - JULY 31: A gymnast performs during warmups before the start of the Artistic Gymnastics Women's Team final on Day 4 of the London 2012 Olympic Games at North Greenwich Arena on July 31, 2012 in London, England. (Photo by Jamie Squire/Getty Images)

LONDON, ENGLAND - JULY 31: Emmanuel Lucenti of Argentina loses to Antoine Valois-Fortier of Canada in the Men's -81 kg Judo on Day 4 of the London 2012 Olympic Games at ExCeL on July 31, 2012 in London, England. (Photo by Chris McGrath/Getty Images)

LONDON, ENGLAND - JULY 31: Ronny Turiaf #14 of France puts up a shot in the Men's Basketball Preliminary Round match between France and Argentina on Day 4 of the London 2012 Olympic Games at Basketball Arena on July 31, 2012 in London, England. (Photo by Ian Walton/Getty Images)

LONDON, ENGLAND - JULY 31: Chad le Clos of South Africa celebrates after winning the gold in the Men's 200m Butterfly final on Day 4 of the London 2012 Olympic Games at the Aquatics Centre on July 31, 2012 in London, England. (Photo by Al Bello/Getty Images)

LONDON, ENGLAND - JULY 31: Maria Sharapova of Russia react after a shot against Laura Robson of Great Britain during the second round of Women's Singles Tennis on Day 4 of the London 2012 Olympic Games at Wimbledon on July 31, 2012 in London, England. (Photo by Clive Brunskill/Getty Images)

LONDON, ENGLAND - JULY 31: (L-R) Gold Medallists , Conor Dwyer, Michael Phelps, Ryan Lochte and Ricky Berens of the United States pose with the medals won the Men's 4 x 200m Freestyle Relay final on Day 4 of the London 2012 Olympic Games at the Aquatics Centre on July 31, 2012 in London, England. (Photo by Ian MacNicol/Getty Images)

Day 4: United States' Abby Wambach, bottom center, celebrates with teammates including Megan Rapinoe, top, after scoring against North Korea during their group G women's soccer match at the London 2012 Summer Olympics, Tuesday, July 31, 2012 at Old Trafford Stadium in Manchester, England. (AP Photo)

Day 4: Ning Ding of China completes against Tianwei Feng of Singapore during the Women's Singles Table Tennis semi-final match on Day 4 of the London 2012 Olympic Games at ExCeL on July 31, 2012 in London, England. (Getty Images)

Day 4: Tarundeep Rai of India competes in his Men's Individual Archery 1/16 Eliminations match against Kim Bubmin of Korea during Day 4 of the London 2012 Olympic Games at at Lord's Cricket Ground on July 31, 2012 in London, England. (Getty Images)

Day 4: The media were questioning whether Chinese swimmer Ye Shiwen, gold medalist in the 400IM, might be doping. But her coach defended her achievement and officials said there's no evidence to back up any such suspicions. (AP Photo)