Should be noted that Gassiev is clearly not what he once was after the injuries. The hook ain't there for him any more.
Gassiev KO or Opetaia SD. Depends what state Gassiev is in, but if he's capable of anything like his old CW form he'd have to be the favourite. Tough one to call IMHO.
Speaking of Gassiev, he was weighing in at 235+, but came into the Wallin fight at 216. Was there any explanation for that?
That'll do it. But if his healthy fighting weight is 216, he needs to hang it up at heavyweight and go to bridger or cruiser.