Olympics

United States' Allyson Felix celebrates her win in the women's 200-meter final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Wednesday, Aug. 8, 2012. (AP Photo/Lee Jin-man)

Russia's Daria Dmitrieva performs during the rhythmic gymnastics individual all-around qualifications at at the 2012 Summer Olympics, Thursday, Aug. 9, 2012, in London. (AP Photo/Julie Jacobson)

From left to right, Susie Scanlan, Kelley Hurley, Courtney Hurley and Maya Lawrence of the United States celebrate their victory at the end of the women's eppe team bronze medal fencing competition against Russia at the ExCel Centre at the 2012 Summer Olympics on Saturday, Aug. 4, 2012, in London. (AP PhotoDamir Sagolj, Pool)

Members of the team of Russia are thrown up in the air during the women's team synchronized swimming technical routine at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Thursday, Aug. 9, 2012. (AP Photo/Michael Sohn)

United States' Aries Merritt, second from left, crosses the finish line ahead of United States' Jason Richardson, right, and Jamaica's Hansle Parchment, left, to win gold in the men's 110-meter hurdles final (AP Photo/Anja Niedringhaus)

Matthias Steiner of Germany gets hit by the weights while failing to make a successful lift in the men's over 105-kg, group A, weightlifting competition at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Mike Groll)

Athletes line up for a women's 100-meter hurdles heat during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Monday, Aug. 6, 2012. (AP Photo/Daniel Ochoa De Olza)

USA's Tyson Chandler slams a dunk against Australia's David Andersen during a men's quarterfinals basketball game at the 2012 Summer Olympics, Wednesday, Aug. 8, 2012, in London. (AP Photo/Charles Krupa)

Britain's Mo Farah, right, crosses the finish line to win gold ahead of United States' Galen Rupp in the men's 10,000-meter final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Saturday, Aug. 4, 2012. (AP Photo/Anja Niedringhaus)

Saudi Arabia's Sarah Attar competes in a women's 800-meter heat during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Wednesday, Aug. 8, 2012. (AP Photo/Daniel Ochoa De Olza)

Jamaica's Usain Bolt, foreground left, goes to cross the finish line ahead of Jamaica's Yohan Blake, third from right, United States' Tyson Gay, second from right, and Trinidad's Richard Thompson in the men's 100-meters final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Sunday, Aug. 5, 2012. (AP Photo/Matt Dunham)

South Korea's Kim Hyeon-woo stands on the victory stand after defeating Hungary's Tamas Lorincz in their gold medal match in the 66-kg Greco-Roman wrestling competition at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Paul Sancya)

In this photo taken with a fisheye lens, Britain women's water polo players huddle before the seventh place water polo match at the 2012 Summer Olympics, Thursday, Aug. 9, 2012, in London. (AP Photo/Julio Cortez)

Ethiopia's gold medal winner Tiki Gelana falls during the women's marathon at the 2012 Summer Olympics Sunday, Aug. 5, 2012 in London. Right is Germany's Irina Mikitenko.(AP Photo/Lee Jin-man)

Germany's Angela Maurer, front, and other athletes dive into the Serpentine at Hyde Park as they compete in the women's marathon swimming competition at the 2012 Summer Olympics Thursday, Aug. 9, 2012, in London. (AP Photo/Charlie Riedel)

China's Ren Cancan, is knocked down by Great Britain's Nicola Adams, blue, during their women's final flyweight 51-kg boxing match at the 2012 Summer Olympics, Thursday, Aug. 9, 2012, in London. (AP Photo/Mark Duncan)

Serena Williams, left, and Venus Williams of the United States laugh together on the podium after receiving their gold medals in women's doubles at the All England Lawn Tennis Club in Wimbledon, London at the 2012 Summer Olympics, Sunday, Aug. 5, 2012. (AP Photo/Elise Amendola)

United States' Sanya Richards-Ross celebrates her win in the women's 400-meter final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Sunday, Aug. 5, 2012.(AP Photo/Anja Niedringhaus)

In this photo made using a fisheye lens, Jaime Azcarraga, of Mexico, rides his horse Gangster, in the equestrian show jumping team competition at the 2012 Summer Olympics, Sunday, Aug. 5, 2012, in London. (AP Photo/David Goldman)

Russia's Evgeniia Kolodko reacts after taking her final throw to win bronze in the women's shot put final during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Monday, Aug. 6, 2012. (AP Photo/Matt Dunham)

U.S. gymnast McKayla Maroney, right, stand along with Romania's gymnast Sandra Raluca Izbasa during the podium ceremony for the artistic gymnastics women's vault finals at the 2012 Summer Olympics, Sunday, Aug. 5, 2012, in London. (AP Photo/Julie Jacobson)

South Africa's Oscar Pistorius runs in one of the men's 400-meter semifinal races during the athletics competition in the Olympic Stadium at the 2012 Summer Olympics, London, Sunday, Aug. 5, 2012. (AP Photo/Lee Jin-man)

British supporters react as they watch a broadcast of the woman's 1500-meter semifinals on a screen at Hyde Park in London during 2012 Summer Olympics, Monday, Aug. 6, 2012, in London. (AP Photo/Emilio Morenatti)

Britain's Andy Murray celebrates after defeating Switzerland's Roger Federer to win the men's singles gold medal match at the All England Lawn Tennis Club at Wimbledon, in London, at the 2012 Summer Olympics, Sunday, Aug. 5, 2012. (AP Photo/Victor R. Caivano)

Cyprus' Chrystalleni Trikomiti performs during the rhythmic gymnastics individual all-around qualifications at at the 2012 Summer Olympics, Thursday, Aug. 9, 2012, in London. (AP Photo/Gregory Bull)

A child tries to catch rain drops during the women's marathon at the 2012 Summer Olympics on, Sunday, Aug. 5, 2012 in London. (AP Photo/Emilio Morenatti)

Spain's Viran Morros de Argila, covers his face after his team lost to France their men's handball quarterfinal match at the 2012 Summer Olympics, Wednesday, Aug. 8, 2012, in London. (AP Photo/Vadim Ghirda)

Kerri Walsh Jennings of the United States leaps in the air after beating China in two sets during a women's semi-final beach volleyball match at the 2012 Summer Olympics, Tuesday, Aug. 7, 2012, in London. (AP Photo/Dave Martin)