Gold Medallists Michael Phelps, Conor Dwyer, 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 Adam Pretty/Getty Images)
Women's 4 x 200 Freestyle Relay
US gold medalists Dana Vollmer, Allison Schmitt, Shannon Vreeland and Missy Franklin celebrate on the podium after the women's 4x200m freestyle relay final swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / GABRIEL BOUYS
Allison Schmitt - 200M Freestyle
Allison Schmitt of the United States celebrates after winning gold in the Women's 200m Freestyle final on Day 4 of the London 2012 Olympic Games at the Aquatics Centre on July 31, 2012 in London, England. (Photo by Clive Rose/Getty Images)
Dana Vollmer - 100M Butterfly
US swimmer Dana Vollmer competes in the women's 100m butterfly final swimming event at the London 2012 Olympic Games on July 29, 2012 in London. AFP PHOTO / GABRIEL BOUYS
Gymnastics - Team Competition
Jordyn Wieber, Gabrielle Douglas, Mc Kayla Maroney, Alexandra Raisman and Kyla Ross of the United States celebrate on the podium after winning the gold medal in 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 Ronald Martinez/Getty Images)
Kimberly Rhode - Skeet Shooting
Kimberly Rhode of the United States competes in the Women's Skeet Shooting final on Day 2 of the London 2012 Olympic Games at The Royal Artillery Barracks on July 29, 2012 in London, England. (Photo by Lars Baron/Getty Images)
Kristin Armstrong - Women's Individual Time Trial Road Cycling
Kristin Armstrong of the United States in action during the Women's Individual Time Trial Road Cycling on day 5 of the London 2012 Olympic Games on August 1, 2012 in London, England. (Photo by Alex Livesey/Getty Images)
Matthew Grevers - 100M Backstroke
US swimmer Matthew Grevers poses on the podium with the gold medal for the men's 100m backstroke swimming event at the London 2012 Olympic Games in the Aquatics Centre at the Olympic Park in London on July 30, 2012. AFP PHOTO / LEON NEAL
Missy Franklin - 100M Backstroke
LONDON, ENGLAND - JULY 30: Missy Franklin of the United States celebrates with her gold medal during the medal ceremony for the Women's 100m Backstroke on Day 3 of the London 2012 Olympic Games at the Aquatics Centre on July 30, 2012 in London, England. (Photo by Adam Pretty/Getty Images)
Nathan Adrian - 100M Freestyle
US swimmer Nathan Adrian celebrates after the men's 100m freestyle final swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / CHRISTOPHE SIMON (Photo credit should read CHRISTOPHE SIMON/AFP/GettyImages)
Ryan Lochte - 400 Individual Medley
US swimmer Ryan Lochte competes in the men's 200m individual medley semi-finals swimming event at the London 2012 Olympic Games on August 1, 2012 in London. AFP PHOTO / GABRIEL BOUYS
Vincent Hancock - Men's Skeet Shooting
Vincent Hancock of the United States reacts after competing in the Men's Skeet Shooting final round on Day 4 of the London 2012 Olympic Games at The Royal Artillery Barracks on July 31, 2012 in London, England. (Photo by Lars Baron/Getty Images)
Gabrielle Douglas - All-Around Competition
US gymnast Gabrielle Douglas performs on the beam during the artistic gymnastics women's individual all-around final at the 02 North Greenwich Arena in London on August 2, 2012 during the London 2012 Olympic Games. Douglas won the event. AFP PHOTO / THOMAS COEX
Kayla Harrison - Judo
Kayla Harrison of the United States (white) and Gemma Gibbons of Great Britain compete in the Women's -78 kg Judo on Day 6 of the London 2012 Olympic Games at ExCeL on August 2, 2012 in London, England. (Photo by Laurence Griffiths/Getty Images)
Michael Phelps - 200IM
US swimmer Michael Phelps shows off his gold medal after the podium ceremony for the men's 200m individual medley swimming event at the London 2012 Olympic Games on August 2, 2012 in London. AFP PHOTO / MARTIN BUREAU
Rebecca Soni - 200M Butterfly
US swimmer Rebecca Soni competes to win gold in a world record time in the women's 200m breaststroke final swimming event at the London 2012 Olympic Games on August 2, 2012 in London. AFP PHOTO / FABRICE COFFRINI
Tyler Clary - 200M Backstroke
US swimmer Tyler Clary celebrates winning gold in the men's 200m backstroke final swimming event at the London 2012 Olympic Games on August 2, 2012 in London. AFP PHOTO / CHRISTOPHE SIMON (Photo credit should read CHRISTOPHE SIMON/AFP/GettyImages)
Women's Eight Final Rowing
US rowers Mary Whipple, Caryn Davies, Caroline Lind, Eleanor Logan, Meghan Musnicki, Taylor Ritzel, Esther Lofgren, Zsuzsanna Francia, and Erin Cafaro celebrate after winning the gold medal for the women's eight final of the rowing event during the London 2012 Olympic Games, at Eton Dorney Rowing Centre in Eton, west of London, on August 2, 2012. AFP PHOTO / POOL / ARMANDO FRANCA
Micahel Phelps - 100M Butterfly
15-Year-Old Katie Ledecky - 800M
US swimmer Katie Ledecky poses on the podium after winning gold in the women's 800m freestyle final during the swimming event at the London 2012 Olympic Games on August 3, 2012 in London. AFP PHOTO / FABRICE COFFRINI
Missy Franklin - 200M Backstroke
PICTURE TAKEN WITH A ROBOTIC CAMERA
US swimmer Missy Franklin competes in the women's 200m backstroke final during the swimming event at the London 2012 Olympic Games on August 3, 2012 in London. She won gold. AFP PHOTO / FRANCOIS XAVIER MARIT
Serena Williams - Women's Tennis
LONDON, ENGLAND - AUGUST 04: Serena Williams of the United States reacts after defeating Maria Sharapova of Russia to win the gold medal match of the Women's Singles Tennis on Day 8 of the London 2012 Olympic Games at the All England Lawn Tennis and Croquet Club on August 4, 2012 in London, England. (Photo by Clive Brunskill/Getty Images)
Men's 4x100m Medley Relay
Gold medallists (L-R) Michael Phelps, Nathan Adrian, Matthew Grevers, and Brendan Hansen of the United States pose following the medal ceremony for the Men's 4x100m Medley Relay Final on Day 8 of the London 2012 Olympic Games at the Aquatics Centre on August 4, 2012 in London, England. (Photo by Ronald Martinez/Getty Images)
4x100m Meldey Relay
Gold medallists (L-R) Dana Volmer, Rebecca Soni, Allison Schmitt and Missy Franklin of the United States pose following the medal ceremony for the Women's 4x100m Meldey Relay Final on Day 8 of the London 2012 Olympic Games at the Aquatics Centre on August 4, 2012 in London, England. (Photo by Jeff Gross/Getty Images)
Women's 50m Rifle 3 Positions
Jamie Lynn Gray of the United States is in full concentration during the 10m air rifle women final at the London 2012 Olympic Games at the Royal Artillery Barracks in London, on July 28, 2012. Chinese Yi Silin grabbed the first gold medal for her country. AFP PHOTO/MARWAN NAAMANI
Mike Bryan and Bob Bryan - Men's Double
Mike Bryan (R) and Bob Bryan (L) celebrate after defeating Jo-Wilfried Tsonga and Michael Llodra of France in their Men's Doubles Tennis final match on Day 8 of the London 2012 Olympic Games at the All England Lawn Tennis and Croquet Club on August 4, 2012 in London, England. (Photo by Clive Brunskill/Getty Images)
Women's Doubles
Gold medalists Serena Williams of the United States and Venus Williams of the United States celebrate on the popdium during the medal ceremony for the Women's Doubles Tennis on Day 9 of the London 2012 Olympic Games at the All England Lawn Tennis and Croquet Club on August 5, 2012 in London, England. (Photo by Clive Brunskill/Getty Images)
Jennifer Suhr - Women's Pole Vault
Jennifer Suhr of the United States competes in the Women's Pole Vault final on Day 10 of the London 2012 Olympic Games at the Olympic Stadium on August 6, 2012 in London, England. (Photo by Hannah Johnston/Getty Images)
Sanya Richards-Ross 400M
Sanya Richards-Ross of the United States and Christine Ohuruogu of Great Britain compete during the Women's 400m final on Day 9 of the London 2012 Olympic Games at the Olympic Stadium on August 5, 2012 in London, England. (Photo by Mike Hewitt/Getty Images)
Alexandra Raisman - Women's Floor Exercis
Alexandra Raisman of the United States competes in the Artistic Gymnastics Women's Floor Exercise final on Day 11 of the London 2012 Olympic Games at North Greenwich Arena on August 7, 2012 in London, England. (Photo by Hannah Johnston/Getty Images)
US gold medalist Christian Taylor poses
US gold medalist Christian Taylor poses on the podium after winning the men's triple jump final at the athletics event during the London 2012 Olympic Games on August 9, 2012 in London. AFP PHOTO / JOHANNES EISELE
Women's Soccer
Gold medalist Team USA pose for photographers after the podium ceremony of the women's football competition of the London 2012 Olympic Games on August 9, 2012 at Wembley stadium in London. Team USA won gold, while Team Japan took silver and Team Canada got bronze. AFP PHOTO / MARTIN BERNETTI
Ashton Eaton - Men's Decathlon
Gold medalist Ashton Eaton of the United States poses on the podium during the medal ceremony for the Men's Decathlon on Day 14 of the London 2012 Olympic Games at Olympic Stadium on August 10, 2012 in London, England. (Photo by Ezra Shaw/Getty Images)
Paige Mcpherson - taekwondo
US athlete Paige Mcpherson celebrates her victory over Grenada's Andrea St Bernard at the end of their women's taekwondo gold medal bout in the category under 67 kg as part of the London 2012 Olympic games, on August 10, 2012 at the ExCel centre in London. AFP PHOTO / TOSHIFUMI KITAMURA (Photo credit should read TOSHIFUMI KITAMURA/AFP/GettyImages)
Women's 4 x 100m Relay
Carmelita Jeter of the United States, Bianca Knight of the United States, Allyson Felix of the United States and Tianna Madison of the United States celebrate next to the clock after winning gold and setting a new world record of 40.82 afterthe Women's 4 x 100m Relay Final on Day 14 of the London 2012 Olympic Games at Olympic Stadium on August 10, 2012 in London, England. (Photo by Streeter Lecka/Getty Images)
Olympics Day 14 - Wrestling
Jordan Ernest Burroughs of the United States celebrates his gold medal in the Men's Freestyle 74 kg Wrestling on Day 14 of the London 2012 Olympic Games at ExCeL on August 10, 2012 in London, England. (Photo by Feng Li/Getty Images)
David Boudia- 10M Platform Diving
US diver David Boudia poses with the gold medal after winning the men's 10m platform final during the diving event at the London 2012 Olympic Games on August 11, 2012 in London. AFP PHOTO / THOMAS COEX
Women's Basketball
US players pose with their gold medals after winning the London 2012 Olympic Games women's basketball competition at the North Greenwich Arena in London on August 11, 2012. AFP PHOTO /TIMOTHY A. CLARY
US' gold medalist Ashton Eaton celebrate
US' gold medalist Ashton Eaton celebrates after the men's decathlon 1500m race at the athletics event during the London 2012 Olympic Games on August 9, 2012 in London. AFP PHOTO / GABRIEL BOUYS
US gold medalist Brittney Reese poses on
US gold medalist Brittney Reese poses on the podium of the women's long jump at the athletics event of the London 2012 Olympic Games on August 9, 2012 in London. AFP PHOTO / JOHANNES EISELE
Olympics Day 13 - Water Polo
United States players celebrate winning the Women's Water Polo Gold Medal match between the United States and Spain on Day 13 of the London 2012 Olympic Games at the Water Polo Arena on August 9, 2012 in London, England. (Photo by Paul Gilham/Getty Images)
