UFC featherweight champion Jose Aldo defends his title in the headlining bout at UFC 179 when, for the second time, he faces top contender Chad Mendes. In this Countdown video, get a behind-the-scene look into their lives and training as Aldo looks to remain undefeated in his UFC campaign while Mendes aims to wrestle Aldo's title away.

UFC 179 takes place on Saturday, October 25th, from the Ginásio do Maracanãzinho in Rio de Janeiro, Brazil.