Can Thiago Santos rediscover his winning ways? Or will Johnny Walker finally break through? With UFC Vegas 38 just hours away, MMA Fighting’s Mike Heck, Jose Youngs and Alexander K. Lee breakdown the top storylines ahead of Saturday’s card.

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Follow José Youngs: @JoseYoungs
Follow Alexander K. Lee: @AlexanderKLee

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UFC Vegas 38 Preview Show | Do-Or-Die For Thiago Santos?