 Jackson said that because Ortiz was one of the biggest stars in the UFC, and that both were fighters in the same weight class, he did not want to interfere.Jackson made his UFC debut at "UFC 67", where he knocked out Marvin Eastman, avenging an early career loss.At "UFC 71" on May 26, 2007, Jackson faced UFC Light Heavyweight Champion Chuck Liddell in a title rematch of their 2003 Pride bout.