http://www.MMAWeekly.com/ -- As is customary before its pay-per-view events, the Ultimate Fighting Championship on Thursday held a media conference call as lead-up to next week's UFC 158: St-Pierre vs. Diaz, which takes place on Saturday night at the Bell Centre in Montreal. The call was slated to feature the top six welterweights on the card: Georges St-Pierre, Nick Diaz, Carlos Condit, Johny Hendricks, Nate Marquardt, and Jake Ellenberger. It quickly devolved into a verbal slugfest between S