A dislocated thumb has forced Brazilian standout Amanda Nunes  out of next week’s TUF Nations Finale event in Quebec City, Quebec, Canada, resulting in yet another late change to the April 16 card. Former Strikeforce women’s bantamweight champion Sarah Kaufman  (16-2 MMA, 0-0 UFC) now meets former Invicta FC rival Leslie Smith  (6-4-1 MMA, 0-0 UFC) in a much-anticipated rematch from one year ago. Kaufman and Smith first faced off in a featured matchup at Invicta FC 5 in April 2013.