Diaz would be another excellent choice to work his striking skills with, I just don't see him runnin with that Gracie team to be honest. I don't think his personality matches up with those guys at all.
I realize my suggestion, BJ Penn, isn't exactly the most humble cat in the game but I think Brookins meshes better with him than Diaz. IMHO.
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Fav Five
Fedor | Shogun | Penn | Hendo | Barnett |