LONDON, ENGLAND - AUGUST 10: Kevin Durant #5 of United States reacts after a breakaway dunk in the first quarter while taking on Argentina during the Men's Basketball semifinal.

LONDON, ENGLAND - AUGUST 10: Luis Scola #4 of Argentina drives between Carmelo Anthony #15 and LeBron James #6 of United States in the first half during the Men's Basketball semifinal

LONDON, ENGLAND - AUGUST 10: An exhibition dunker performs during a break in the Men's Basketball semifinal match between Russia and Spain.

Alexander Kaun #8 of Russia goes up for a shot against Marc Gasol #13 of Spain during the Men's Basketball semifinal match on Day 14 of the London 2012 Olympic Games at the Basketball Arena on August 10, 2012 in London, England.

Jeffery Demps of the United States, Darvis Patton of the United States, Trell Kimmons of the United States and Justin Gatlin of the United States react after the Men's 4 x 100m Relay Round 1 heats on Day 14 of the 2012 London Olympics.

Victor Minibaev of Russia competes in the Men's 10m Platform Diving Preliminary on Day 14 of the London 2012 Olympic Games at the Aquatics Centre on August 10, 2012 in London, England.

Victor Serna Ortega of Columbia competes in the Men's 10m Platform Diving Preliminary on Day 14 of the London 2012 Olympic Games at the Aquatics Centre on August 10, 2012 in London, England.

An athlete holds the baton during the Women's 4 x 400m Relay Round 1 heats on Day 14 of the London 2012 Olympic Games at Olympic Stadium on August 10, 2012 in London, England.

Relay runers approach their team-mates to hand over their relay batons on Day 14 of the London 2012 Olympic Games at Olympic Stadium on August 10, 2012 in London, England.

A general view of the stadium during the athletics on Day 14 of the London 2012 Olympic Games at Olympic Stadium on August 10, 2012 in London, England. (Photo by Rob Carr/Getty Images)

WEYMOUTH, ENGLAND - AUGUST 10: Tamara Echegoyen Dominguez, Sofia Toro Prieto Puga and Angela Pumariega Menendez of Spain compete in the Women's Elliott 6m WMR Sailing on Day 14.

AUGUST 10: Mathew Belcher (R) and Malcolm Page (L) of Australia celebrate in the Olympic rings after winning gold in the Men's 470 Sailing on Day 14 of the London 2012 Olympic Games Aug. 10, 2012 in Weymouth, England.

Mariana Pajon (R) of Colombia races across a jump in the Women's BMX Cycling Semi Finals on Day 14 of the London 2012 Olympic Games at the BMX Track on August 10, 2012 in London, England.

Egypt competes in the Women's Teams Synchronised Swimming Free Routine final on Day 14 of the London 2012 Olympic Games at the Aquatics Centre on August 10, 2012 in London, England.

Tsvetan Sokolov #19 of Bulgaria celebrates a spike in the 4th set against Russia during the Men's Volleyball Semifinals on Day 14 of the London 2012 Olympic Games at Earls Court on August 10, 2012 in London, England.

Spain competes in the Women's Teams Synchronised Swimming Free Routine final on Day 14 of the London 2012 Olympic Games at the Aquatics Centre on August 10, 2012 in London, England. (Photo by Clive Rose/Getty Images)

The Great Britain team competes during the Rythmic Gymnastics Group All-Around competition on Day 14 of the London 2012 Olympic Games at Wembley Arena on August 10, 2012 in London, England.

Abdulkhakim Shapiyev of Kazakhstan (R) competes with Bilel Ouechtati of Tunisia during their Men's Freestyle 74 kg Wrestling 1/8 final bout on Day 14 of the London 2012 Olympic Games at ExCeL on August 10, 2012 in London, England.

Competitors race across a jump in the Men's BMX Cycling Final on Day 14 of the London 2012 Olympic Games at the BMX Track on August 10, 2012 in London, England. (Photo by Clive Brunskill/Getty Images)

Alise Post of the United States is assisted by medical crew after a crash in the Women's BMX Cycling Semi Finals on Day 14 of the London 2012 Olympic Games at the BMX Track on August 10, 2012 in London, England. (Photo by Bryn Lennon/Getty Images)

Swimmers competes during the Men's Marathon 10km swim on Day 14 of the London 2012 Olympic Games at Hyde Park on August 10, 2012 in London, England.

Jesse Phillips (L) and Stephen Bird of Australia compete in the Men's Kayak Double (K2) 200m Canoe Sprint semifinals on Day 14 of the London 2012 Olympic Games at Eton Dorney on August 10, 2012 in Windsor, England.

Julie Zetlin of the United States competes during the Rythmic Gymnastics Individual All-Around competition on Day 14 of the London 2012 Olympic Games at Wembley Arena on August 10, 2012 in London, England.

Rovshan Bayramov of Azerbaijan competes with Abdelrahman Eltrabily of Egypt in the Men's Freestyle 55 kg Wrestling on Day 14 of the London 2012 Olympic Games at ExCeL on August 10, 2012 in London, England.

Jonas Ems (L) and Ronald Rauhe of Germany compete in the Men's Kayak Double (K2) 200m Canoe Sprint heats on Day 14 of the London 2012 Olympic Games at Eton Dorney on August 10, 2012 in Windsor, England.

Janine Murray of Australia competes during the Rythmic Gymnastics Individual All-Around competition on Day 14 of the London 2012 Olympic Games at Wembley Arena on August 10, 2012 in London, England.

Arezou Hakimimoghaddam of Iran competes in the Women's Kayak Single (K1) 200m Sprint heats on Day 14 of the London 2012 Olympic Games at Eton Dorney on August 10, 2012 in Windsor, England.

Igor Chervynskiy of Ukraine and Benjamin Schulte of Guam dive into the water to start the Men's Marathon 10km swim on Day 14 of the London 2012 Olympic Games at Hyde Park on August 10, 2012 in London, England. (Photo by Cameron Spencer/Getty Images)

Miguel Antonio Correa of Argentina reacts during the Men's Kayak Double (K2) 200m Canoe Sprint semifinals on Day 14 of the London 2012 Olympic Games at Eton Dorney Aug. 10, 2012 in Windsor, England.

Sarah Stevenson of Great Britain competes against Paige Mcpherson of The United States of America during the Women's -67kg Taekwondo Preliminary Round on Day 14 of the London 2012 Olympic Games at ExCeL on August 10, 2012 in London, England.