Derrick "The Black Beast" Lewis was recently knocked out by Matt Mitrione after starting his UFC career on a two fight win streak. A fighter with knockout power but far from a rounded game, he's unranked, but could be a bounce-back fight for Nelson. Both men are potentially capable of knocking the other out, and with the chin of Nelson finally having been cracked, Lewis might come out guns blazing. This is a solid co-main event on a Fight Night card, and could be booked relatively quickly depending on medical suspensions for each fighter. The only downside is Lewis' lack of name value in comparison to the rest of this list.