UFC 47: It's On

The event was headlined by Chuck Liddell vs Tito Ortiz, a long-running rivalry between former training partners that became one of the UFC’s earliest mainstream draws. The card generated a major surge in pay per view interest and helped position the Light Heavyweight division as the promotion’s commercial centerpiece. It also featured the first meeting between Nick Diaz and Robbie Lawler, an early pairing of two fighters who would remain relevant across multiple eras.