Michael Phelps, left, and Matt Grevers of the United States react after winning the Men's 4x100M relay, at the FINA Swimming World Championships in Rome, Sunday, July 26, 2009. The United States won the gold medal. AP Photo logo AP Photo 4 months ago

Michael Phelps, left, and Matt Grevers of the United States react after winning the Men's 4x100M relay, at the FINA Swimming World Championships in Rome, Sunday, July 26, 2009. The United States won the gold medal.