Metal Mulisha has released a special shirt for Nick Diaz, the controversial and enigmatic Welterweight fighter. The Nick Diaz UFC 137 Walkout Shirt is black and features full length designs on both the front and the back of the shirt. The Stockton bad boy is the current reigning Strikeforce Welterweight Champion, and although he won’t be challenging Georges St. Pierre at UFC 137, he will still be headlining the main event in a fight with the former UFC Welterweight Champion, BJ Penn. As part of the highly successful Scrap Pack coached and managed by Cesar Gracie, Nick Diaz hasn’t lost a fight since 2007 and is riding a 10-fight win streak.
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