Diaz, Nelson and more: exclusive pictures from UFC 137

Check out exclusive pictures from UFC 137 by Tracy Lee. You'll see Nick Diaz's taunting, Roy Nelson's belly-rubbing, Donald Cerrone's overwhelming win and more from Saturday night's fights. Which is your favorite pic? Tell us in the comments or on Facebook.

Source: http://sports.yahoo.com/mma/blog/cagewriter/post/Diaz-Nelson-and-more-exclusive-pictures-from-U?urn=mma-wp8855

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