Maybe it's something in the water, but Cesar Gracie fighters have had trouble getting what they want out of the UFC recently. First it was Nick Diaz who retired from competition last year and has since been a constant conversation topic with his desire to get a title shot again in the UFC. Then, of course there's Gilbert Melendez who's negotiations soured so poorly that Cesar Gracie was threatening to pull all of his fighters out of the Zuffa promotion. Melendez and the UFC are on much better terms now, since Melendez signed a big new contract, but that hasn't stopped another Stockton based fighter from asking to be released. Nate Diaz took to Twitter with his contract request. He deleted it soon after, but MMA Fighting's David St. Martin was able to provide a re-tweet.