Generally we break these things down fight-by-fight, but for this event we're going to do one recap for the whole undercard. This will give a brief description of each fight, what might be next for each fighter, and whether the fight is worthy of a watch or not. There will also be a recap covering the UFC 147 main event.
Moraes was a late replacement for the injured Daniel Sarafian, and was known more for his BJJ than his standup. He engaged Mutante on the feet for the whole fight though, and got his licks in. But Mutante was just too good for him. Ferreira dropped Moraes with an awesome capoeira kick in the second round and again with a straight left in the third. There were large periods of inactivity in the bout, but it wasn't bad overall. I'd lean towards watching it later, but now works too.
Rony Jason picked up a decision victory in a fight that wasn't very good. Pepey kept trying to pull guard and missed badly with a lot of his strikes, and Jason didn't know how to react. He said after the fight that he was thrown off when they wouldn't let him wear his mask to the cage. Nevertheless, he became the first Ultimate Fighter Brazil champion. I'd say there's never going to be a good reason to watch this fight, so skip it.
Werdum got tagged with some left hooks, but largely controlled the striking early until he dropped Russow with a big uppercut and finished him off on the ground. The TKO victory came at 2:28 of the first round. Werdum called out UFC heavyweight champion Junior dos Santos (who knocked Werdum out with an eerily similar uppercut a few years ago) after the bout. You should definitely watch this right now.
Dias rode a solid grappling game to a unanimous decision victory in the first UFC 147 main card fight. Other than nearly securing an armbar in the second round, Alcantara was completely shut down by the former Shooto Brazil fighter and wasn't ever really in the fight. Dias looked very strong for a featherweight and looks to be an instant star in a semi-weak division. You can probably wait until later to watch the bout though, since nothing super crazy exciting happened.
Check out some more Bloody Elbow UFC 147 coverage below.