Michael Phelps (R) celebrates with Ryan Lochte (L) and Ricky Berens of the U.S. after winning the men's 4x200m freestyle relay swimming final at the World Championships in Rome July 31, 2009.

Michael Phelps (L), David Walters and Ricky Berens (R) of the U.S. celebrate winning the men's 4x200m freestyle swimming final as Ryan Lochte finishes the relay at the World Championships in Rome July 31, 2009.

Michael Phelps (L), David Walters and Ricky Berens (R) of the U.S. celebrate winning the men's 4x200m freestyle swimming final as Ryan Lochte finishes the relay at the World Championships in Rome July 31, 2009.

U.S. relay team of Ricky Berens (R), Michael Phelps (C) and David Walters cheer on Ryan Lochte arriving to win the gold medal and set a new world record in the men's 4 X 200m freestyle swimming final at the World Championships in Rome July 31, 2009.

Michael Phelps (L) and Ricky Berens of the U.S. celebrate winning the men's 4x200m freestyle swimming final as Ryan Lochte finishes the relay at the World Championships in Rome July 31, 2009.

Michael Phelps (L), David Walters and Ricky Berens (R) of the U.S. celebrate winning the men's 4x200m freestyle swimming final as Ryan Lochte finishes the relay at the World Championships in Rome July 31, 2009.

Michael Phelps (L), David Walters and Ricky Berens (R) of the U.S. celebrate winning the men's 4x200m freestyle swimming final as Ryan Lochte finishes the relay at the World Championships in Rome July 31, 2009.

AP Photo 3 months ago

Michael Phelps of the United States celebrates with his teammate Ricky Berens, right, after winning the gold medal of the Men's 4x200m Freestyle relay, at the FINA Swimming World Championships in Rome, Friday, July 31, 2009.

AP Photo 3 months ago

Michael Phelps, left, and Ricky Berens of the United States celebrate after winning the gold medal of the Men's 4x200m Freestyle relay, at the FINA Swimming World Championships in Rome, Friday, July 31, 2009.

Getty Images 3 months ago

ROME - JULY 31: (L-R) David Walters, Ricky Berens Ryan Lochte and Michael Phelps of the United States receive the gold medal during the medal ceremony for the Men's 4x 200m Freestyle Final at the 13th FINA World Championships at the Stadio del Nuoto on July 31, 2009 in Rome, Italy.

Getty Images 3 months ago

ROME - JULY 31: Ryan Lochte, David Walters, Ricky Berens and Michael Phelps of the United States celebrate with family and friends after receiving the gold medal during the medal ceremony for the Men's 4x 200m Freestyle Final at the 13th FINA World Championships at the Stadio del Nuoto...

Getty Images 3 months ago

ROME - JULY 31: Ryan Lochte, David Walters, Ricky Berens and Michael Phelps of the United States celebrate with family and friends after receiving the gold medal during the medal ceremony for the Men's 4x 200m Freestyle Final at the 13th FINA World Championships at the Stadio del Nuoto...

Getty Images 3 months ago

ROME - JULY 31: Ryan Lochte, David Walters, Ricky Berens and Michael Phelps of the United States celebrate with family and friends after receiving the gold medal during the medal ceremony for the Men's 4x 200m Freestyle Final at the 13th FINA World Championships at the Stadio del Nuoto...

Getty Images 3 months ago

ROME - JULY 31: Ryan Lochte, David Walters, Ricky Berens and Michael Phelps of the United States celebrate with family and friends after receiving the gold medal during the medal ceremony for the Men's 4x 200m Freestyle Final at the 13th FINA World Championships at the Stadio del Nuoto...

Getty Images 3 months ago

ROME - JULY 31: (L-R) Ryan Lochte, David Walters, Ricky Berens and Michael Phelps of the United States receive the gold medal during the medal ceremony for the Men's 4x 200m Freestyle Final at the 13th FINA World Championships at the Stadio del Nuoto on July 31, 2009 in Rome, Italy.

Getty Images 3 months ago

ROME - JULY 31: (L-R) Ryan Lochte, David Walters, Ricky Berens and Michael Phelps of the United States receive the gold medal during the medal ceremony for the Men's 4x 200m Freestyle Final at the 13th FINA World Championships at the Stadio del Nuoto on July 31, 2009 in Rome, Italy.

Getty Images 3 months ago

ROME - JULY 31: (L-R) Ryan Lochte, David Walters, Ricky Berens and Michael Phelps of the United States receive the gold medal during the medal ceremony for the Men's 4x 200m Freestyle Final at the 13th FINA World Championships at the Stadio del Nuoto on July 31, 2009 in Rome, Italy.

Getty Images 3 months ago

ROME - JULY 31: (L-R) Ryan Lochte, David Walters, Ricky Berens and Michael Phelps of the United States receive the gold medal during the medal ceremony for the Men's 4x 200m Freestyle Final at the 13th FINA World Championships at the Stadio del Nuoto on July 31, 2009 in Rome, Italy.

Getty Images 3 months ago

ROME - JULY 31: Michael Phelps (C) and Ricky Berens (R) of the United States roar on teammate Ryan Lochte in the Men's 4x 200m Freestyle Final at the 13th FINA World Championships at the Stadio del Nuoto on July 31, 2009 in Rome, Italy.

Getty Images 3 months ago

ROME - JULY 31: Michael Phelps (L) and Ricky Berens of the United States celebrate after breaking the world record setting a new time of 6:58.55 seconds in the Men's 4x 200m Freestyle Final during the 13th FINA World Championships at the Stadio del Nuoto on July 31, 2009 in Rome, Italy.

Getty Images 3 months ago

ROME - JULY 31: (L-R) Michael Phelps, Ricky Berens and David Walters of the United States watch teammate Ryan Lochte in the Men's 4x 200m Freestyle Final during the 13th FINA World Championships at the Stadio del Nuoto on July 31, 2009 in Rome, Italy.

Fred Bousquet (C) of France waves to the crowd after beating Michael Phelps (L) and Ricky Berens (R) in the finals of the 100 meter freestyle during the Charlotte UltraSwim Grand Prix at the Mecklenburg Aquatic Center in Charlotte, North Carolina May 17, 2009.

AP Photo 5 months ago

Olympic swimming gold medalist Michael Phelps, left, Fred Bousquet, center, and Ricky Berens stand on the podium following the men's final 100-meter freestyle event during the USA Swimming Grand Prix Series Charlotte Ultraswim in Charlotte, N.C. , Sunday, May 17, 2009.

Michael Phelps (R) of the U.S. celebrates his team's victory in the men's 4 x 200 meters freestyle relay swimming final with Ryan Lochte (C) and Ricky Berens during the Beijing 2008 Olympic Games at the National Aquatics Center August 13, 2008.

AP Photo 3 months ago

Michael Phelps, left, Ricky Berens and David Walters, background, of the United States, celebrate after winning the gold medal of the Men's 4x200m Freestyle relay, at the FINA Swimming World Championships in Rome, Friday, July 31, 2009.