Lightweight Nate "Galaxxy Warrior" Campbell (32-5-1, 25 KOs) dethroned previously unbeaten IBF/WBA/WBO world champion Juan "Baby Bull" Diaz (33-1, 17 KOs) by twelve round split decision. Both fighters excitingly traded punches over the first half of the fight. Campbell cut Diaz over the left eye with a punch in round six, however Campbell was deducted a point in that round by referee Jesus Salcedo Lopez for an alleged headbutt. From that point things went south for the champion as Campbell became more and more in control. Diaz' eye was swollen shut at the end. Scores were 114-113 Diaz, 115-112, 116-111 Campbell.