Anderson Silva is feeling the pressure as he heads into UFC 168 on Saturday.
The former middleweight champion was dethroned by a Chris Weidman left hook in July. On Saturday, Silva will try to recapture his crown in a highly anticipated rematch.
It's possible the MMA legend won't step into the Octagon again if he loses at UFC 168. He has hinted at retirement a number of times and has long been interested in a boxing match with Roy Jones Jr.
While the UFC won't cut him anytime soon, Silva's MMA career might depend on the result of his bout with Weidman on Saturday. As such, "The Spider" will be one of multiple fighters who are competing to keep their UFC careers alive in Las Vegas this weekend.
These are the fighters on the hot seat, heading into UFC 168.