U.S. swimmer Missy Franklin competes in the women's 100m backstroke semi-final swimming event at the London 2012 Olympic Games on July 29, 2012 in London.
Credit: FABRICE COFFRINI
United States' Missy Franklin, left, and Australia's Emily Seebhom start the women's 100-meter backstroke swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Monday, July 30, 2012.
Credit: AP Photo/Mark Duncan
United States' Missy Franklin reacts to her gold medal win in the women's 100-meter backstroke swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, July 30, 2012.
Credit: AP Photo/Lee Jin-man
US swimmer Missy Franklin poses on the podium with the gold medal after winning the women'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.
Credit: LEON NEAL
The United States' Missy Franklin swims during a practice session at the Aquatics Center at the Olympic Park ahead of the 2012 Summer Olympics, Thursday, July 26, 2012, in London.
Credit: AP Photo/Daniel Ochoa de Olza
Missy Franklin of the United States reacts during a practice session at the Aquatics Center at the Olympic Park ahead of the 2012 Summer Olympics, Thursday, July 26, 2012, in London. Opening ceremonies for the 2012 London Olympics will be held Friday, July 27.
Credit: AP Photo/Michael Sohn
U.S. swimmer Missy Franklin rehydrates during a practice session at the Aquatics Center at Olympic Park ahead of the 2012 Summer Olympics, Thursday, July 26, 2012, in London.
Credit: AP Photo/Lee Jin-man
Missy Franklin swims in the women's 200m individual medley finals during day three of the Indy Grand Prix @ the Nat at the Indiana University Natatorium on March 31, 2012, in Indianapolis.
Missy Franklin celebrates after she won the championship final of the Women's 100m backstroke during day three of the 2012 U.S. Olympic Swimming Team Trials at CenturyLink Center on June 27, 2012, in Omaha, Neb.
Melissa Franklin competes in the Women's 200m Individual Medley heat on day four of the 10th FINA World Swimming Championships on Dec. 18, 2010, in Dubai, United Arab Emirates.
Dagny Knutson, left, Kathryn Hoff, center, and Melissa Franklin celebrate winning the gold medal in the Women's 4x200m Freestyle final during day thirteen of the 14th FINA World Championships at the Oriental Sports Center on July 28, 2011, in Shanghai, China.
Melissa Franklin of the United States smiles after winning the gold medal in the Women's 200m backstroke final during day fifteen of the 14th FINA World Championships at the Oriental Sports Center on July 30, 2011, in Shanghai, China.
U.S. swimmer Missy Franklin competes in the women's 100m backstroke event during the fourth meet of the Short Course Swimming World Cup in Berlin, Germany, on Oct. 23, 2011.
Michael Phelps and Missy Franklin react after receiving their Omega watches for male and female swimmer of the meet after day eight of the 2012 U.S. Olympic Swimming Team Trials on July 2, 2012, in Omaha, Neb.
Melissa Franklin of the United States competes in the Women's 200m backstroke final during day 15 of the 14th FINA World Championships at the Oriental Sports Center on July 30, 2011, in Shanghai, China.
Missy Franklin leaves the pool after she won the Women's 100m Backstroke event during the fourth meet of the Short Course Swimming World Cup in Berlin, Germany, on Oct. 23, 2011.
Missy Franklin celebrates after winning the women's 200m backstroke finals during the 2011 AT&T Winter National Championships at the Georgia Tech Aquatic Center on Dec. 3, 2011, in Atlanta.
Missy Franklin, top, and Elizabeth Beisel, bottom, start their race in the women's 200m Backstroke semifinal on day six of the 2012 U.S. Olympic Team Trials on June 30, 2012, in Omaha, Neb., where Franklin placed first.
Missy Franklin, second left, and fellow competitors start their race in the women's 200m breaststroke final on day seven of the 2012 U.S. Olympic Team Trials on July 1, 2012, in Omaha, Neb., where Franklin placed first.
Missy Franklin, left, and Elizabeth Beisel, right, turn to watch the screen following their first and second place finish, respectively, in the women's 200m Breaststroke final on day seven of the 2012 U.S. Olympic Team Trials on July 1, 2012, in Omaha, Neb.
Missy Franklin swims to a first place finish in the women's 200m breaststroke final on day seven of the 2012 U.S. Olympic Team Trials on July 1, 2012, in Omaha, Neb.
Bonnie Brandon, left, Missy Franklin, middle, and Maya Dirado, right, compete in preliminary heat 19 of the Women's 200m Backstroke during day six of the 2012 U.S. Olympic Swimming Team Trials at CenturyLink Center on June 30, 2012, in Omaha, Neb.
Missy Franklin poses with her Kiphuth Highpoint award on day three of the AT&T Short Course National Championships at McCorkle Aquatic Pavillion on Dec. 4, 2010, in Columbus, Ohio.
Missy Franklin celebrates as she participates in the medal ceremony for the women's 200m backstroke during day seven of the 2012 U.S. Olympic Swimming Team Trials at CenturyLink Center on July 1, 2012, in Omaha, Neb.