The monster light heavyweight clash between unbeatens Thiago Silva and Lyoto Machida appears to now be set for UFC 93 at the Mandalay Bay Events Center in Las Vegas, Nevada, on January 31, according to Tatame.com.It was a 205-pound bout that was originally scheduled for UFC 89: Bisping vs. Leben on October 18; however, Silva had to withdraw from the contest because of a back injury sustained during training. The cancellation was a bummer because it was a highly anticipated match up between two of the top contenders in the division. Source: Thiago Silva vs Lyoto Machida rescheduled for UFC 93