UFC middleweight champion Anderson Silva is set to put his title on the line against undefeated challenger Chris Weidman on Saturday at the Mandalay Bay Events Center in Las Vegas. They first had to weigh-in Friday at the Mandalay Bay Events Center, making their bout official. Much like when they faced off at the pre-fight press conference, Silva and Weidman were face-to-face when they stepped off the scale for their staredown at the UFC 162 weigh-ins. Be sure to  Like MMAWeekly.com on Facebook  and  Follow @MMAWeeklycom on Twitter .