Nathan Adrian of the United States looks up after finishing a Men's 100m freestyle heat at the FINA Swimming World Championships in Barcelona, Spain, Wednesday, July 31, 2013 .(AP Photo

 

              Nathan Adrian of the United States looks up after finishing a Men
Nathan Adrian of the United States looks up after finishing a Men's 100m freestyle heat at the FINA Swimming World Championships in Barcelona, Spain, Wednesday, July 31, 2013 .(AP Photo/Manu Fernandez)