Nate Diaz signed with the UFC.
Nathan Donald `` Nate '' Diaz ( born April 16 , 1985 ) is an American professional mixed martial artist currently competing for the Ultimate Fighting Championship ( UFC ) . Prior to signing with the UFC , Diaz competed in World Extreme Cagefighting , Strikeforce , and Pancrase . Nicholas Robert `` Nick '' Diaz ( born August 2 , 1983 ) is an American professional mixed martial artist who is currently signed with the Ultimate Fighting Championship ( UFC ) .