This is a battle of the two toughest names in MMA: Miller and Diaz. The Miller brothers have never been finished in 44 combined fights, and the Diaz brothers have been finished a mere three times in their 56 fights.
This fight is going to be insane.
Both guys are have great striking, an amazing submission game and are incredibly durable. I don't see either of them getting caught in a submission or knocked out. I'm tempted to think Diaz will pick Miller apart like he did with Cerrone, but Miller is probably too smart to let that happen. Either way, I don't think either fighter is getting out of the cage without shedding large quantities of sweat and blood. If I gotta make the call, I'd say that Miller has a slight strength advantage, so I could see him controlling Diaz for a hard-fought decision.
Miller by unanimous decision (29-28, 29-28, 29-28).