Joey Gomez was already a tough guy by the time he got to Iraq. He had signed up for the Marines, in part, because he was worried about his toughness getting the better of him. An incident involving him significantly injuring another man while some people were trying to break into his house underlined that. So he didn’t need to prove himself when he walked by the training room on his base in 2006.
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Fight Path: Marine Joey Gomez overcomes bumps in road for promising MMA career – MMA Junkie