Michael Phelps of the U.S. laughs with his teammates after winning the men's 4x100m medley relay final at the Pan Pacific 2010 swimming championships in Irvine, California, Aug 21, 2010. [Photo/Agencies]

Kosuke Kitajima of Japan waves to the crowd after winning the men's 200m breaststroke final at the Pan Pacific Swimming Championships in Irvine, California, Aug 21, 2010. [Photo/Agencies]