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Mixed Martial Arts (MMA) has rapidly stormed into the world sports market as one of the most popular around. At almost the same time, tony horton created P90X, which is also one of the most popular sports related topics around. In gyms everywhere, people are signing up to learn how Brock Lesnar, Anderson Silva and BJ Penn do what they do, but they're also getting online to look at how the 90x workout can benefit them.
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