So here's the amazing stare down video between B.J. Penn and Nick Diaz. There were concerns that they were being too cordial with each other during media calls leading up the fight and that there was absolutely zero animosity between them. Well, this video proves that even if Nick Diaz respects you, he'll still mad dog you at the weigh ins. Both Penn and Diaz made weight making the fight official. 

Following the scuffle Nick Diaz walked off the stage, opting to not take part in the post-weigh in interview with Joe Rogan. Is this the kind of thing that the UFC is prepared for should Diaz get past Penn and somehow become the welterweight champion after Georges St. Pierre finally defends his belt against Carlos Condit? I don't think it matters at this point. Diaz is the anti-hero and has a massive fan base that loves his attitude. 

SBN coverage of UFC 137 Results: Penn vs. Diaz