A light heavyweight division contest between UFC Middleweight Champion Anderson Silva and UFC Ultimate Fighter alumni Stephan Bonnar. Silva enters the fight riding a sixteen fight winning streak and has won twice as a light heavyweight in the UFC. Bonnar will enter the fight riding a three fight winning streak, most notably defeating Kyle Kingsbury at UFC 139. UFC 139 takes place on October 13th at the HSBC Arena in Rio De Janeiro, Brazil with the aforementioned fighters headlining.