The main event featured the third and final encounter between Tito Ortiz and Ken Shamrock. At UFC 61, the two fighters met for a second time, with Ortiz reigning victorious via technical knockout. However, some critics contend that the fight was stopped too early by referee Herb Dean. At the UFC 62 weigh-ins, UFC President Dana White announced the third Ortiz-Shamrock encounter. Tickets went on sale on Tuesday, August 29, 2006, and sold out in two days.
