The WBC ordered by unanimous votes that the mandatory defense of WBC middleweight champion Julio Cesar Chavez Jr. has to be against the diamond champion Sergio Martinez but also allowed that if both parties reach an agreement, they can have voluntary defenses and then the winner of each bout fight between them for the WBC title. Chavez Jr called WBC President Jose Sulaiman to ask his approval for his voluntary defense on February 4, so the Sulaiman called Sergio Martinez who accepted that Chavez Jr. be allowed to fight because he will also fight in March, so both boxers agreed to a fight between them after their voluntary defenses.