The latest to do so is lightweight contender Anthony Pettis, who will make the transition to featherweight on August 3rd to fight for UFC gold against Jose Aldo.
The August 3 date has yet to be officially announced for an event by the promotion and a location is also not available, but the title fight will likely be the headliner on the yet to be named fight card.
Jose Aldo last saw action this past weekend when he methodically outpointed former lightweight champion, Frankie Edgar to retain his UFC featherweight title. The win marked the first ever-former champion Aldo has beaten.
Pettis last saw action on the UFC on FOX 6 card when he easily took out Donald Cerrone early in the first round of action.