UFC Fight Night 20: Maynard vs. Diaz was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on January 11, 2010 at the Patriot Center in Fairfax, Virginia.
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UFC Fight Night 20: Maynard vs. Diaz was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on January 11, 2010 at the Patriot Center in Fairfax, Virginia.