In the 38th round of one of boxing’s epic rivalries, Manny “PacMan” Pacquiao and Juan Manuel Marquez battle against one another in the last of their four-fight, eight year saga at the MGM Grand Garden Arena in Las Vegas, Nevada on December 8, 2012. Marquez defeated Pacquiao by a brutal knockout at minute 2:59 of the sixth round. Photo by © JP YIM