I think he'll do just fine. He may not win, but he's as good as anyone Jacare has fought, and he'll probably force a decision, at least.
I seriously doubt he'll be submitted, and he has much less to fear on the feet from Jacare than he did against Belfort.
Hell, Matt's standup isn't even too bad. Maybe he'd be better off trying to keep this one on the feet and working clinch, boring as that sounds.