Michael Phelps' last individual race
Michael Phelps Men's 100m Butterfly
Credit: Getty Images
LONDON, ENGLAND - AUGUST 03: Michael Phelps of the United States competes in 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 Paul Gilham/Getty Images)
Other Slideshows
Photos: School bus overturns on I-55
Photos: Mugshots of the week May 20-24
Photos: Washington bridge collapse
Photos: Man City rallies to beat Chelsea at Busch
Photos: Chelsea trains for Man City game at Busch Stadium
Photos: Warming up for Senior PGA Championship at Bellerive
