Countdown goes behind the scenes with four of the world's best athletes. Light heavyweight king Jon Jones braces for the most challenging - and personal - fight of his career against Daniel Cormier, a former Olympic wrestler with an undefeated record. UFC Countdown goes behind the scenes as four of the world's best athletes ready for the first event of 2015. Undefeated lightweight Myles Jury gets a step up in competition, testing himself against the always-game, top-five ranked Donald "Cowboy" Cerrone.
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