United States' Nathan Adrian celebrates his gold medal win in the men's 100-meter freestyle swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Wednesday, Aug. 1, 2012. (AP Photo/Matt Slocum)

Hungary's Daniel Gyurta reacts after winning gold in the men's 200-meter breaststroke swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Wednesday, Aug. 1, 2012. Gyurta set a world record with a time of 2 minutes, 7.28 seconds, shaving 0.03 off the previous mark set by Christian Sprenger of Australia at the 2009 world championships in a now-banned bodysuit. (AP Photo/Michael Sohn)

Great Britain's Heather Stanning and Helen Glover celebrate after winning the gold medal for the women's rowing pair in Eton Dorney, near Windsor, England, at the 2012 Summer Olympics, Wednesday, Aug. 1, 2012. (AP Photo/Chris Carlson)

Australia's Nathan Outteridge and Iain Jensen practice before starting the 49er class race at the London 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in Weymouth and Portland, England. (AP Photo/Bernat Armangue)

Olympics competitors sail on Laser dinghy during the race 5 at the London 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in Weymouth and Portland, England. (AP Photo/Francois Mori)

Brazil's Larissa Franca, center, dives for the ball as Juliana Silva looks on during a beach volleyball match against Czech Republic's Hana Klapalova and Lenka Hajeckova at the 2012 Summer Olympics, London, Wednesday, Aug. 1, 2012. (AP Photo/Jae C. Hong)

Britain's Bradley Wiggins competes on his way to win the Gold medal in the men's individual time trial cycling event at the 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in London. (AP Photo/Sergey Ponomarev)

Britain's Bradley Wiggins takes the start of the men's individual time trial cycling event at the 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in London. (AP Photo/Matt Rourke)

Japanese gymnast and gold medallist Kohei Uchimura performs on the horizontal bar during the Artistic Gymnastic men's individual all-around competition final at the 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in London. (AP Photo/Matt Dunham)

Japanese gymnast Kohei Uchimura performs on the parallel bars during the Artistic Gymnastic men's individual all-around competition at the 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in London. (AP Photo/Julie Jacobson)

Russia's Sergey Vodopiyanov, right, fights Brazil's Robenilson Vieira de Jesus, during their men's bantam 56-kg boxing match at the 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in London. (AP Photo/Ivan Sekretarev)

Azerbaijan's Teymur Mammadov (in red) fights Australia's Jai Tapu Opetaia during a heavyweight 91-kg preliminary boxing match at the 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in London. (AP Photo/Patrick Semansky)

Italy's Daniele Molmenti celebrates winning the gold medal in the final of the K-1 men's kayak slalom at Lee Valley Whitewater Center, at the 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in Waltham Cross near London. (AP Photo/Kirsty Wigglesworth)

Brazil's Raul Neto yells as he celebrates after hitting a three-pointer and being fouled against Australia during a basketball game at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. Neto hit the free throw for a four point play. (AP Photo/Charles Krupa)

People walk through the ExCel Centre, home of several Olympic events, during the 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in London. (AP Photo/Charlie Riedel)