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Highlights - UFC 137 - Penn vs. Diaz -
http://fightnetwork.com/ - Fight Network (@FightNet) previews UFC 137 featuring B.J. Penn vs. Nick Diaz, Cheick Kongo vs. Matt Mitrione, Cro Cop vs. Roy Nelson, Scott Jorgensen vs. Jeff Curran and Hatsu Hioki vs. George Roop taking place on Oct. 29, 2011 in Las Vegas, Nevada.
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