Watch UFC 73: Stacked together — synced playback, live chat and reactions. Up to 12 people.
UFC 73: Stacked was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC). It took place on July 7, 2007 at the ARCO Arena in Sacramento, California and featured a total of nine bouts: four on the preliminary card and five on the main card. The main event was Anderson Silva defending the UFC Middleweight Championship against Nathan Marquardt.