The Proving Grounds
What does it take to become a champion? "The Proving Grounds" provides an all-access inside look at Jackson's MMA training academy, following the lives of owner Greg Jackson and his family, and the strategies, philosophies, history, and hardships behind the best Mixed Martial Arts school in the world.What does it take to become a champion? "The Proving Grounds" provides an all-access inside look at Jackson's MMA training academy, following the lives of owner Greg Jackson and his family, and the strategies, philosophies, hi... Read more
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Watch "The Proving Grounds" on Google Play released in 2013. It's a documentary movie, and is currently only available for purchase or rent.
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