See the grit and determination that made Chael Sonnen a two-division title challenger in this UFC 109 war against highly-favored middleweight Nate Marquardt.
FREE FIGHT VIDEO | Chael Sonnen vs. Nate Marquardt
See the grit and determination that made Chael Sonnen a two-division title challenger in this UFC 109 war against highly-favored middleweight Nate Marquardt.