Say it ain't so, Nick. Following a five-round unanimous-decision
loss to welterweight champion Georges St-Pierre, multiple
sources, including MMA Supremacy, are citing a possible
retirement plan for Nick Diaz.  This isn't the first time we've
heard retirement rumblings from the 29-year-old fighter, as
Yahoo! Sports notes that Diaz almost called it a career after
losing to Carlos Condit in February 2012. After the loss, this
is what Diaz had to say regarding his future in the UFC (via
Yahoo! Sports): &ldquo;I have to decide if I even want to do
this anymore. To be honest, I don&rsquo;t know if I really got
any more. I don&rsquo;t make excuses; I think I&rsquo;m done
with mixed martial arts. I&rsquo;m tired of getting banged up
like this.&rdquo; After hearing those comments, it sounds like a
typical Diaz sound bite&mdash;firing off at the mouth and
letting his emotions get the best of him. And fire off at the
mouth he did. After spewing words of possible retirement, Diaz
backtracked, believing he still thinks h