I quite like this idea, I love the concept of a grungy cross between MMA shirst and Jerseys.The grunge style but do it colorfully on a jersey.
I also like camo if you can find the right one, Tap Out has used a little camo but Im not a fan of the pattern they use. Id suggest a white and grey "arctic" camo but you really need to search for the right one, camo is tough.
I started wearing MMA shirts at work and my coworkers ask me why I'm always black lately. I tell them the majority of shirts being sold are black. I wish there was more variety.