By Melissa Segura
December 26, 2013
Ronda Rousey leads her team in training drills during filming of season 18 of The Ultimate Fighter.
Al Powers/Zuffa LLC/Zuffa LLC via Getty Image/Getty Images

Rousey moves on to show the group another ground shuffle. "Oh, my God, this one's hard," fighter David Grant yells out as he stalls on the mat. Rousey moves in next to him, demonstrating to him -- and perhaps all of us -- not only how to move across the mat, but also beneath and beyond The Glass Wall, too.

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