Northcutt competes in his third UFC bout in a less than four-month stretch.
Bader competes in his 16th UFC light-heavyweight bout, tied for the fourth most appearances in divisional history behind Tito Ortiz (19), Liddell (19) and Rashad Evans (18).
Rothwell is on his first three-fight winning streak since 2006. He'd never won consecutive fights under the UFC banner prior to this streak.
Josh Barnett (34-7 MMA, 6-2 UFC), 38, is the oldest of the 26 fighters scheduled to compete at the event.
Jimmie Rivera (18-1 MMA, 2-0 UFC) enters the event on a 17-fight winning streak. He hasn't suffered a defeat since November 2008.