Michael Phelps' last individual race
148073337ST00143_Olympics_D
Credit: Getty Images
LONDON, ENGLAND - AUGUST 03: Michael Phelps of the United States celebrates winning the Men?s 100m Butterfly Final on Day 7 of the London 2012 Olympic Games at the Aquatics Centre on August 3, 2012 in London, England. (Photo by Adam Pretty/Getty Images)
