Jerry Rice -- Caught In Ferocious Armbar at MMA Gym ... "I"m Tappin" Out!" (VIDEO)

Jerry Rice is no dummy … and knows when you’re caught in a Ronda Rousey-style armbar at an MMA gym — YOU TAP IMMEDIATELY!!! The NFL legend teamed up with Bellator, Spike and Veterans Operation Wellness to do some MMA training with U.S. Army…

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