Other - UFC 137 - Penn vs. Diaz - MMA H.E.A.T brings you the weigh-in and face-off between UFC 137 headliners BJ Penn and Nick Diaz. Things heat up and Dana White has to step in to break the two up. Be sure to visit http://www.MMAheat.com for more interviews and archived episodes of our 1/2 hour TV show. Nós falamos Português! * We're on Facebook: http://www.facebook.com/MMAheat * Follow MMAheat on Twitter: http://www.twitter.com/MMAheat * Follow Karyn on Twitter: http://www.twitter.com/KarynBryant