Slideshow: Michael Phelps through the years

(Photo: Jorge Silva / Reuters)

Final Olympic golden moment

Michael Phelps, center, of the U.S. celebrates with teammates from left, Brendan Hansen, Matthew Grevers and Nathan Adrian after receiving their gold medals for winning the men’s 4x100 medley relay final during the London 2012 Olympic Games, Aug. 4, 2012.

View the complete slideshow.