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Leo is a quiet, overlooked kid at a local martial arts gym. He isn't the strongest or the fastest, but he has the most heart. He’s often used as a "sparring partner" for the gym’s rising star, a more aggressive kid named Jax. fightingkidscom dvd link
The official link for Fighting Kids DVD features is through their custom request page at FightingKids.com Knowing the would help narrow down the search