Phelps reacts after winning and setting a world record in the men's 100m butterfly swimming final at...
Michael Phelps of the U.S. (R) reacts after winning and setting a world record as Milorad Cavic of Serbia watches after the men's 100m butterfly swimming final at the World Championships in Rome August 1, 2009. REUTERS/Max Rossi (ITALY SPORT SWIMMING)