Many argue that the best fight in UFC history is between Anderson Silva and Chael Sonnen at UFC 117 in 2010. Both fighters went the full five rounds of battle, with Silva emerging victorious in a close unanimous decision. Initially in the fight, Sonnen dominated Silva, taking him down again and again and landing a few shots from the top. Silva, however, fought back admirably in round five, performing a triangle choke and then a patented armbar a few seconds before the fight was over. The fight was classic and had a dramatic quality that UFC fans still remember fondly.